fix: patch dependency advisories on the current release

Keep Next on the patched 15.5 line instead of the Next 16 Dependabot bump, and move OpenTelemetry and gRPC to the versions that close the open Go alerts.

.env.example

@@ -23,6 +23,8 @@ FRONTEND_ORIGINS=https://localhost,https://127.0.0.1
 # Keep false unless you intentionally want fail-open rate limits / captcha.
 DEV_MODE=false
 SEED_CURRICULUM=false
+# One registration per client IP. Keep false behind NAT / shared egress (default).
+REGISTRATION_ENFORCE_IP=false
 # METRICS_TOKEN=
 # TRUSTED_PROXY_CIDRS=10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,127.0.0.0/8,::1/128
 

.env.prod.example

@@ -23,6 +23,8 @@ FRONTEND_ORIGINS=https://app.example.com
 
 DEV_MODE=false
 SEED_CURRICULUM=false
+# Keep false behind NAT until the edge forwards real client IPs.
+REGISTRATION_ENFORCE_IP=false
 METRICS_TOKEN=replace-with-metrics-scrape-token
 # TRUSTED_PROXY_CIDRS=10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
 

LICENSE

@@ -0,0 +1,235 @@
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backend/go.mod

@@ -12,10 +12,10 @@ require (
 	github.com/jackc/pgx/v5 v5.11.0
 	github.com/redis/go-redis/v9 v9.22.0
 	github.com/rs/cors v1.11.1
-	go.opentelemetry.io/otel v1.35.0
+	go.opentelemetry.io/otel v1.45.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.35.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.45.0
-	go.opentelemetry.io/otel/sdk v1.35.0
+	go.opentelemetry.io/otel/sdk v1.45.0
-	go.opentelemetry.io/otel/trace v1.35.0
+	go.opentelemetry.io/otel/trace v1.45.0
 	golang.org/x/crypto v0.57.0
 )
 
@@ -34,26 +34,26 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.43.1 // indirect
 	github.com/aws/aws-sdk-go-v2/service/sts v1.51.1 // indirect
 	github.com/aws/smithy-go v1.28.1 // indirect
-	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/logr v1.4.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
-	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.45.0 // indirect
-	go.opentelemetry.io/otel/metric v1.35.0 // indirect
+	go.opentelemetry.io/otel/metric v1.45.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.5.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.11.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
 	golang.org/x/net v0.58.0 // indirect
 	golang.org/x/sync v0.23.0 // indirect
 	golang.org/x/sys v0.48.0 // indirect
 	golang.org/x/text v0.42.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250218202821-56aae31c358a // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260803160001-6ac0973c030d // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260803160001-6ac0973c030d // indirect
-	google.golang.org/grpc v1.71.0 // indirect
+	google.golang.org/grpc v1.83.2 // indirect
-	google.golang.org/protobuf v1.36.5 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
 )

backend/go.sum

@@ -38,16 +38,16 @@ github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
 github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
 github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
 github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
-github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
+github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
-github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.4 h1:tG4xh9yMsRCAiodLVTxyrkzSZ9+o0L1Kg/+cPVcbP/8=
-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.4/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
@@ -60,8 +60,8 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 h1:e9Rjr40Z98/clHv5Yg79Is0NtosR5LXRvdr7o/6NwbA=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0 h1:5VipnvEpbqr2gA2VbM+nYVbkIF28c5ZQfqCBQ5g2xfk=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1/go.mod h1:tIxuGz/9mpox++sgp9fJjHO0+q1X9/UOWd798aAm22M=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0/go.mod h1:Hyl3n6Twe1hvtd9XUXDec4pTvgMSEixRuQKPTMH2bNs=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
@@ -85,24 +85,24 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/zeebo/xxh3 v1.1.0 h1:s7DLGDK45Dyfg7++yxI0khrfwq9661w9EN78eP/UZVs=
 github.com/zeebo/xxh3 v1.1.0/go.mod h1:IisAie1LELR4xhVinxWS5+zf1lA4p0MW4T+w+W07F5s=
-go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
-go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
-go.opentelemetry.io/otel v1.35.0 h1:xKWKPxrxB6OtMCbmMY021CqC45J+3Onta9MqjhnusiQ=
+go.opentelemetry.io/otel v1.45.0 h1:pdrWmLHofpubmArBv1LgFSv1Z0Ie/ppdZzu+kUN5EeU=
-go.opentelemetry.io/otel v1.35.0/go.mod h1:UEqy8Zp11hpkUrL73gSlELM0DupHoiq72dR+Zqel/+Y=
+go.opentelemetry.io/otel v1.45.0/go.mod h1:XZxIqPapzEYnhNSScF5DIqXhm/rYi0FzCe2XddAwZfQ=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 h1:1fTNlAIJZGWLP5FVu0fikVry1IsiUnXjf7QFvoNN3Xw=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.45.0 h1:QRefszxJmfPdjXUUm3j6iDzY03mTPXMjqErFqQ67vUg=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0/go.mod h1:zjPK58DtkqQFn+YUMbx0M2XV3QgKU0gS9LeGohREyK4=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.45.0/go.mod h1:Tiz03lTBVBrm7eWZBOidzEaYaJa8tjwGUGv6d8mlTyk=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.35.0 h1:xJ2qHD0C1BeYVTLLR9sX12+Qb95kfeD/byKj6Ky1pXg=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.45.0 h1:QBajQ2SrwQijzHyZbQlPsuIzpl/ll8DY6wPWsajeGcI=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.35.0/go.mod h1:u5BF1xyjstDowA1R5QAO9JHzqK+ublenEW/dyqTjBVk=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.45.0/go.mod h1:08ZQLjrPLQ6R4kAXvuOvODEer5Yh4CoFvll5qB2BCI8=
-go.opentelemetry.io/otel/metric v1.35.0 h1:0znxYu2SNyuMSQT4Y9WDWej0VpcsxkuklLa4/siN90M=
+go.opentelemetry.io/otel/metric v1.45.0 h1:7Eg1uH7CJ5cXv9is6tnBe1FI6rj1nwUdbFypRm3br/M=
-go.opentelemetry.io/otel/metric v1.35.0/go.mod h1:nKVFgxBZ2fReX6IlyW28MgZojkoAkJGaE8CpgeAU3oE=
+go.opentelemetry.io/otel/metric v1.45.0/go.mod h1:HAPbm1nd3p1PmFH7v2dR+6BjXxw+Lq4a2+pndMAm08s=
-go.opentelemetry.io/otel/sdk v1.35.0 h1:iPctf8iprVySXSKJffSS79eOjl9pvxV9ZqOWT0QejKY=
+go.opentelemetry.io/otel/sdk v1.45.0 h1:4VVSMgQ83dUgW2aoX5f6JgLvHwIvzcuLnF9lUdCSpCw=
-go.opentelemetry.io/otel/sdk v1.35.0/go.mod h1:+ga1bZliga3DxJ3CQGg3updiaAJoNECOgJREo9KHGQg=
+go.opentelemetry.io/otel/sdk v1.45.0/go.mod h1:Sr40LgXV7DsKMMJMKOhUWOgMWTfAaqvm2kF0g7ilwuA=
-go.opentelemetry.io/otel/sdk/metric v1.34.0 h1:5CeK9ujjbFVL5c1PhLuStg1wxA7vQv7ce1EK0Gyvahk=
+go.opentelemetry.io/otel/sdk/metric v1.45.0 h1:oVFszMfyj1Am6s24Vtc7wBb8BKLcwepJjNEYILuiE3o=
-go.opentelemetry.io/otel/sdk/metric v1.34.0/go.mod h1:jQ/r8Ze28zRKoNRdkjCZxfs6YvBTG1+YIqyFVFYec5w=
+go.opentelemetry.io/otel/sdk/metric v1.45.0/go.mod h1:vUWUxDZvu1WVRj8JA8S0AdhsPrZoDpA2DdZauIh4mDA=
-go.opentelemetry.io/otel/trace v1.35.0 h1:dPpEfJu1sDIqruz7BHFG3c7528f6ddfSWfFDVt/xgMs=
+go.opentelemetry.io/otel/trace v1.45.0 h1:l/mP6Uv7oNO7/TblbhpbgMidxhq1uO/rPsikOyVhxag=
-go.opentelemetry.io/otel/trace v1.35.0/go.mod h1:WUk7DtFp1Aw2MkvqGdwiXYDZZNvA/1J8o6xRXLrIkyc=
+go.opentelemetry.io/otel/trace v1.45.0/go.mod h1:qoJJA2xNMnxRrdISU/kLtfUH2wNeQbiv+jhs/CxI8bc=
-go.opentelemetry.io/proto/otlp v1.5.0 h1:xJvq7gMzB31/d406fB8U5CBdyQGw4P399D1aQWU/3i4=
+go.opentelemetry.io/proto/otlp v1.11.0 h1:5rrYs0Ykyj50sdU/JU0x8etU+LubXWb+gED6TbEdMIk=
-go.opentelemetry.io/proto/otlp v1.5.0/go.mod h1:keN8WnHxOy8PG0rQZjJJ5A2ebUoafqWp0eVQ4yIXvJ4=
+go.opentelemetry.io/proto/otlp v1.11.0/go.mod h1:SmVizdCOAm3XBtG1g1NnOdhW6jtddT72hLMhv8VwA8E=
 go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
 go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
@@ -117,14 +117,16 @@ golang.org/x/sys v0.48.0 h1:bbX/i/6MgT9BVLM9RT1thmxL04yeTAhbEz4SyadbXoo=
 golang.org/x/sys v0.48.0/go.mod h1:hNLxWAXmnKAxqDtdwIYC4bM9oQPEecfsnNMuSxOs3og=
 golang.org/x/text v0.42.0 h1:JbOZXgfeCPU9gacVtYliJqOhD+zhrEqK4LfdpmlUZqI=
 golang.org/x/text v0.42.0/go.mod h1:ojzP1Z+2QtioaF8DTtO8K5q7JWVVYwZKenzujK0Zd0E=
-google.golang.org/genproto/googleapis/api v0.0.0-20250218202821-56aae31c358a h1:nwKuGPlUAt+aR+pcrkfFRrTU1BVrSmYyYMxYbUIVHr0=
+gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
-google.golang.org/genproto/googleapis/api v0.0.0-20250218202821-56aae31c358a/go.mod h1:3kWAYMk1I75K4vykHtKt2ycnOgpA6974V7bREqbsenU=
+gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a h1:51aaUVRocpvUOSQKM6Q7VuoaktNIaMCLuhZB6DKksq4=
+google.golang.org/genproto/googleapis/api v0.0.0-20260803160001-6ac0973c030d h1:FarXi840EJWSHYTN3ERkADbPWjl307+FGrA22KAVjjc=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a/go.mod h1:uRxBH1mhmO8PGhU89cMcHaXKZqO+OfakD8QQO0oYwlQ=
+google.golang.org/genproto/googleapis/api v0.0.0-20260803160001-6ac0973c030d/go.mod h1:K/+WGbmBY7aNW1HDw1fJnKYo10i0DkAX6pows00dLig=
-google.golang.org/grpc v1.71.0 h1:kF77BGdPTQ4/JZWMlb9VpJ5pa25aqvVqogsxNHHdeBg=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260803160001-6ac0973c030d h1:IL4hdHzcUv2l/gcg98/Rj3FbtE6axwqslOW8SW0C+S0=
-google.golang.org/grpc v1.71.0/go.mod h1:H0GRtasmQOh9LkFoCPDu3ZrwUtD1YGE+b2vYBYd/8Ec=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260803160001-6ac0973c030d/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
-google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
+google.golang.org/grpc v1.83.2 h1:EManeRomTObA0BU7I8vXgg/78uE5MJ9M8B39EX2WscU=
-google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/grpc v1.83.2/go.mod h1:YPI1hK3kDked6iHvgX3tR0y+nX/qpMFKhPgFsokw1S8=
+google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

backend/internal/api/admin.go

@@ -22,6 +22,20 @@ func (s *Server) handleAdminStats(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]any{"stats": stats})
 }
 
+func (s *Server) handleAdminGetUser(w http.ResponseWriter, r *http.Request) {
+	id := routeID(r, "id")
+	if id <= 0 {
+		writeErr(w, http.StatusNotFound, "کاربر پیدا نشد")
+		return
+	}
+	u, err := s.store.GetUserByID(r.Context(), id)
+	if err != nil {
+		writeErr(w, http.StatusNotFound, "کاربر پیدا نشد")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"user": u})
+}
+
 func (s *Server) handleAdminListUsers(w http.ResponseWriter, r *http.Request) {
 	query := r.URL.Query().Get("q")
 	role := r.URL.Query().Get("role")
@@ -389,27 +403,17 @@ func (s *Server) handleAdminResetPassword(w http.ResponseWriter, r *http.Request
 		writeErr(w, http.StatusForbidden, "دسترسی کافی ندارید")
 		return
 	}
-	target, err := s.store.GetUserByID(r.Context(), id)
+	if _, err := s.store.GetUserByID(r.Context(), id); err != nil {
-	if err != nil {
 		writeErr(w, http.StatusNotFound, "کاربر پیدا نشد")
 		return
 	}
 	var req struct {
-		SecurityAnswer string `json:"securityAnswer"`
+		NewPassword string `json:"newPassword"`
-		NewPassword    string `json:"newPassword"`
 	}
 	if err := bodyJSON(r, &req); err != nil {
 		writeErr(w, http.StatusBadRequest, "دادهٔ ارسالی نامعتبر است")
 		return
 	}
-	if target.SecurityAnswerHash == "" {
-		writeErr(w, http.StatusBadRequest, "برای این کاربر سوال امنیتی تعریف نشده است")
-		return
-	}
-	if !s.auth.CheckPassword(target.SecurityAnswerHash, strings.ToLower(strings.TrimSpace(req.SecurityAnswer))) {
-		writeErr(w, http.StatusForbidden, "جواب سوال امنیتی نادرست است")
-		return
-	}
 	if msg := validatePasswordOnly(req.NewPassword); msg != "" {
 		writeErr(w, http.StatusBadRequest, msg)
 		return

backend/internal/api/auth.go

@@ -306,6 +306,7 @@ func (s *Server) handlePutAvatar(w http.ResponseWriter, r *http.Request) {
 		writeErr(w, http.StatusInternalServerError, "به‌روزرسانی آواتار ممکن نشد")
 		return
 	}
+	s.signUserMedia(user)
 	writeJSON(w, http.StatusOK, map[string]any{"user": user})
 }
 

backend/internal/api/captcha.go

@@ -22,7 +22,7 @@ import (
 )
 
 const (
-	captchaTTL             = 5 * time.Minute
+	captchaTTL             = 2 * time.Minute
 	captchaKeyPrefix       = "pargar:captcha:"
 	captchaRateLimit int64 = 60
 	captchaCharset         = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
@@ -260,6 +260,7 @@ func (s *Server) handleCaptcha(w http.ResponseWriter, r *http.Request) {
 			resp := map[string]any{
 				"challengeId": "dev",
 				"imageBase64": img,
+				"expiresIn":   int(captchaTTL.Seconds()),
 			}
 			if s.cfg.CaptchaExposeAnswer {
 				resp["answer"] = "A2B3"
@@ -297,6 +298,7 @@ func (s *Server) handleCaptcha(w http.ResponseWriter, r *http.Request) {
 	resp := map[string]any{
 		"challengeId": id,
 		"imageBase64": img,
+		"expiresIn":   int(captchaTTL.Seconds()),
 	}
 	// Never expose plaintext answers in production. Local tests may opt in via
 	// CAPTCHA_EXPOSE_ANSWER=true combined with DEV_MODE=true.

backend/internal/api/captcha_test.go

@@ -30,6 +30,10 @@ func TestCaptchaImageChallenge(t *testing.T) {
 	if id == "" || img == "" || answer == "" {
 		t.Fatalf("captcha missing fields: %v", body)
 	}
+	exp, ok := body["expiresIn"].(float64)
+	if !ok || exp < 60 || exp > 180 {
+		t.Fatalf("expiresIn should be a short window: %v", body["expiresIn"])
+	}
 	if _, ok := body["question"]; ok {
 		t.Fatalf("legacy question field should be gone: %v", body)
 	}

backend/internal/api/certificate.go

@@ -228,12 +228,22 @@ func (s *Server) handleRequestPhysicalCertificate(w http.ResponseWriter, r *http
 
 func (s *Server) handleAdminListPhysicalOrders(w http.ResponseWriter, r *http.Request) {
 	status := r.URL.Query().Get("status")
-	orders, err := s.store.ListPhysicalOrders(r.Context(), status)
+	p := parsePageParams(r)
+	orders, total, err := s.store.ListPhysicalOrders(r.Context(), status, p.PageSize, p.Offset)
 	if err != nil {
 		writeErr(w, http.StatusInternalServerError, "بارگذاری سفارش‌ها ممکن نشد")
 		return
 	}
-	writeJSON(w, http.StatusOK, map[string]any{"orders": orders, "physical": s.physicalSettings(r.Context())})
+	if orders == nil {
+		orders = []models.CertificatePhysicalOrder{}
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"orders":   orders,
+		"total":    total,
+		"page":     p.Page,
+		"pageSize": p.PageSize,
+		"physical": s.physicalSettings(r.Context()),
+	})
 }
 
 func (s *Server) handleAdminUpdatePhysicalOrder(w http.ResponseWriter, r *http.Request) {

backend/internal/api/chat.go

@@ -37,6 +37,7 @@ func (s *Server) handleListMentors(w http.ResponseWriter, r *http.Request) {
 		if actor.Role == models.RoleStudent && m.Role != models.RoleMentor && m.Role != models.RoleAdmin {
 			continue
 		}
+		s.signUserMedia(&m)
 		safe = append(safe, map[string]any{
 			"id": m.ID, "name": m.Name, "email": m.Email, "role": m.Role,
 			"avatarVariant": m.AvatarVariant, "avatarPalette": m.AvatarPalette, "avatarPhoto": m.AvatarPhoto,
@@ -111,10 +112,16 @@ func (s *Server) handleConversations(w http.ResponseWriter, r *http.Request) {
 				unread++
 			}
 		}
+		photo := p.AvatarPhoto
+		if photo != "" {
+			tmp := &models.User{ID: p.ID, AvatarPhoto: photo}
+			s.signUserMedia(tmp)
+			photo = tmp.AvatarPhoto
+		}
 		conv := conversation{
 			Partner: map[string]any{
 				"id": p.ID, "name": p.Name, "email": p.Email, "role": p.Role,
-				"avatarVariant": p.AvatarVariant, "avatarPalette": p.AvatarPalette, "avatarPhoto": p.AvatarPhoto,
+				"avatarVariant": p.AvatarVariant, "avatarPalette": p.AvatarPalette, "avatarPhoto": photo,
 				"online": s.hub.Online(p.ID),
 			},
 			UnreadCount: unread,
@@ -137,6 +144,7 @@ func (s *Server) handleChatMessages(w http.ResponseWriter, r *http.Request) {
 		writeErr(w, http.StatusForbidden, "شما اجازهٔ گفتگو با این کاربر را ندارید")
 		return
 	}
+	_ = s.markIncomingChatRead(r.Context(), u, partner)
 
 	if raw := r.URL.Query().Get("around"); raw != "" {
 		aroundID, err := strconv.ParseInt(raw, 10, 64)
@@ -156,7 +164,6 @@ func (s *Server) handleChatMessages(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 		_ = s.store.FillReactions(r.Context(), u.ID, msgs)
-		_ = s.store.MarkChatRead(r.Context(), u.ID, partner)
 		s.resignChatMessages(msgs)
 		pinned, _ := s.store.ListPinnedChatMessages(r.Context(), u.ID, partner)
 		if pinned == nil {
@@ -197,7 +204,6 @@ func (s *Server) handleChatMessages(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 	_ = s.store.FillReactions(r.Context(), u.ID, msgs)
-	_ = s.store.MarkChatRead(r.Context(), u.ID, partner)
 	s.resignChatMessages(msgs)
 	pinned, _ := s.store.ListPinnedChatMessages(r.Context(), u.ID, partner)
 	if pinned == nil {
@@ -337,6 +343,73 @@ func (s *Server) handleChatReact(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]any{"ok": true, "emoji": emoji, "reactions": reactions})
 }
 
+func (s *Server) handleChatEdit(w http.ResponseWriter, r *http.Request) {
+	u := currentUser(r)
+	partner := routeID(r, "partner")
+	if !s.canChatWith(r.Context(), u, partner) {
+		writeErr(w, http.StatusForbidden, "شما اجازهٔ گفتگو با این کاربر را ندارید")
+		return
+	}
+	msgID := routeID(r, "id")
+	var req struct {
+		Body       string             `json:"body"`
+		Attachment *models.Attachment `json:"attachment,omitempty"`
+	}
+	if err := bodyJSON(r, &req); err != nil {
+		writeErr(w, http.StatusBadRequest, "دادهٔ ارسالی نامعتبر است")
+		return
+	}
+	req.Body = strings.TrimSpace(req.Body)
+	if len(req.Body) > 4000 {
+		writeErr(w, http.StatusBadRequest, "پیام باید بین ۱ تا ۴۰۰۰ نویسه باشد")
+		return
+	}
+
+	var (
+		msg *models.ChatMessage
+		err error
+	)
+	if req.Attachment != nil {
+		att := req.Attachment
+		att.Type = strings.ToLower(strings.TrimSpace(att.Type))
+		if att.Type != "image" && att.Type != "video" && att.Type != "audio" {
+			writeErr(w, http.StatusBadRequest, "فقط عکس، ویدیو یا صدا را می‌توان جایگزین کرد")
+			return
+		}
+		key := mediaKeyFromURL(att.URL)
+		if key == "" || !mediaKeyOwnedByUser(key, u.ID) {
+			writeErr(w, http.StatusBadRequest, "پیوست متعلق به شما نیست")
+			return
+		}
+		if q := strings.Index(att.URL, "?"); q >= 0 {
+			att.URL = att.URL[:q]
+		}
+		if att.Name == "" {
+			att.Name = "file"
+		}
+		msg, err = s.store.ReplaceChatAttachment(r.Context(), u.ID, partner, msgID, u.Role, req.Body, att.Type, att.URL, att.Name, att.Size)
+	} else {
+		if req.Body == "" {
+			writeErr(w, http.StatusBadRequest, "پیام باید بین ۱ تا ۴۰۰۰ نویسه باشد")
+			return
+		}
+		msg, err = s.store.EditChatMessage(r.Context(), u.ID, partner, msgID, u.Role, req.Body)
+	}
+	if errors.Is(err, store.ErrNotFound) {
+		writeErr(w, http.StatusNotFound, "پیام پیدا نشد")
+		return
+	}
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, "ویرایش پیام ممکن نشد")
+		return
+	}
+	s.resignChatMessage(msg)
+	event := map[string]any{"type": "chat_edit", "item": msg, "from": u.ID}
+	s.hub.Push(u.ID, event)
+	s.hub.Push(partner, event)
+	writeJSON(w, http.StatusOK, map[string]any{"message": msg})
+}
+
 func (s *Server) handleChatDelete(w http.ResponseWriter, r *http.Request) {
 	u := currentUser(r)
 	partner := routeID(r, "partner")
@@ -473,13 +546,25 @@ func (s *Server) handleChatRead(w http.ResponseWriter, r *http.Request) {
 		writeErr(w, http.StatusForbidden, "شما اجازهٔ گفتگو با این کاربر را ندارید")
 		return
 	}
-	if err := s.store.MarkChatRead(r.Context(), u.ID, partner); err != nil {
+	if err := s.markIncomingChatRead(r.Context(), u, partner); err != nil {
 		writeErr(w, http.StatusInternalServerError, "به‌روزرسانی وضعیت خوانده‌شدن ممکن نشد")
 		return
 	}
 	writeJSON(w, http.StatusOK, map[string]any{"ok": true})
 }
 
+func (s *Server) markIncomingChatRead(ctx context.Context, reader *models.User, partnerID int64) error {
+	if reader == nil {
+		return nil
+	}
+	n, err := s.store.MarkChatRead(ctx, reader.ID, partnerID, reader.Role)
+	if err != nil || n == 0 {
+		return err
+	}
+	s.hub.Push(partnerID, map[string]any{"type": "chat_read", "from": reader.ID})
+	return nil
+}
+
 func (s *Server) canChatWith(ctx context.Context, actor *models.User, partnerID int64) bool {
 	if actor == nil || partnerID <= 0 || actor.ID == partnerID {
 		return false

backend/internal/api/chat_export.go

@@ -57,6 +57,7 @@ type chatExportMessage struct {
 	ReplyTo    *int64                `json:"replyTo,omitempty"`
 	Pinned     bool                  `json:"pinned"`
 	PinnedAt   *time.Time            `json:"pinnedAt,omitempty"`
+	EditedAt   *time.Time            `json:"editedAt,omitempty"`
 	Attachment *chatExportAttachment `json:"attachment,omitempty"`
 }
 
@@ -183,6 +184,7 @@ func (s *Server) buildProjectChatExport(r *http.Request) (*chatExportPayload, []
 					ReplyTo:    m.ReplyTo,
 					Pinned:     m.PinnedAt != nil,
 					PinnedAt:   m.PinnedAt,
+					EditedAt:   m.EditedAt,
 				}
 				if m.Attachment != nil {
 					att := &chatExportAttachment{

backend/internal/api/identity_test.go

@@ -45,7 +45,7 @@ func TestUniquePhone(t *testing.T) {
 	}
 }
 
-func TestAdminResetPasswordRequiresSecurityAnswer(t *testing.T) {
+func TestAdminResetPassword(t *testing.T) {
 	e := setup(t)
 	admin := login(t, e, bootstrapAdminEmail)
 	code, body := e.do(t, "POST", "/api/admin/users", admin, map[string]any{
@@ -59,14 +59,14 @@ func TestAdminResetPasswordRequiresSecurityAnswer(t *testing.T) {
 	uid := int64(body["user"].(map[string]any)["id"].(float64))
 
 	code, _ = e.do(t, "POST", "/api/admin/users/"+itoa(uid)+"/reset-password", admin, map[string]any{
-		"securityAnswer": "اشتباه", "newPassword": "newpass123",
+		"newPassword": "short",
 	})
-	if code != http.StatusForbidden {
+	if code != http.StatusBadRequest {
-		t.Fatalf("wrong answer should 403, got %d", code)
+		t.Fatalf("short password: %d", code)
 	}
 
 	code, body = e.do(t, "POST", "/api/admin/users/"+itoa(uid)+"/reset-password", admin, map[string]any{
-		"securityAnswer": "تهران", "newPassword": "newpass123",
+		"newPassword": "newpass123",
 	})
 	if code != http.StatusOK {
 		t.Fatalf("reset: %d %v", code, body)

backend/internal/api/invites.go

@@ -130,16 +130,8 @@ func (s *Server) handleRegisterInvite(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	ip := clientAddress(r)
+	ip, ok := s.registrationClientIP(w, r)
-	if ip == "" || ip == "unknown" {
+	if !ok {
-		writeErr(w, http.StatusBadRequest, "آدرس شبکه شناسایی نشد")
-		return
-	}
-	if taken, err := s.store.HasRegistrationIP(r.Context(), ip); err != nil {
-		writeErr(w, http.StatusInternalServerError, "بررسی محدودیت ثبت‌نام ممکن نشد")
-		return
-	} else if taken {
-		writeErr(w, http.StatusConflict, "از این شبکه قبلاً ثبت‌نام انجام شده است")
 		return
 	}
 
@@ -292,8 +284,15 @@ func (s *Server) handleAdminCreateInvite(w http.ResponseWriter, r *http.Request)
 
 func (s *Server) handleAdminListInvites(w http.ResponseWriter, r *http.Request) {
 	q := strings.TrimSpace(r.URL.Query().Get("q"))
+	status := strings.TrimSpace(r.URL.Query().Get("status"))
+	switch models.InviteStatus(status) {
+	case "", models.InviteActive, models.InvitePaused, models.InviteRevoked, models.InviteExhausted:
+	default:
+		writeErr(w, http.StatusBadRequest, "وضعیت نامعتبر است")
+		return
+	}
 	p := parsePageParams(r)
-	invites, total, err := s.store.ListRegistrationInvites(r.Context(), q, p.PageSize, p.Offset)
+	invites, total, err := s.store.ListRegistrationInvites(r.Context(), q, status, p.PageSize, p.Offset)
 	if err != nil {
 		writeErr(w, http.StatusInternalServerError, "بارگذاری لینک‌های عضویت ممکن نشد")
 		return

backend/internal/api/invites_test.go

@@ -130,6 +130,7 @@ func TestInviteRevoke(t *testing.T) {
 }
 
 func TestInviteDuplicatePhoneAndIP(t *testing.T) {
+	t.Setenv("REGISTRATION_ENFORCE_IP", "true")
 	e := setup(t)
 	inv := createInvite(t, e, 5, "", nil)
 	token := inv["token"].(string)

backend/internal/api/leaderboard.go

@@ -63,6 +63,7 @@ func (s *Server) handleWeeklyLeaderboard(w http.ResponseWriter, r *http.Request)
 		if err != nil {
 			continue
 		}
+		s.signUserMedia(usr)
 		entries = append(entries, lbEntry{
 			UserID: sc.userID, Name: usr.Name, Email: usr.Email, XP: sc.xp, Rank: i + 1,
 			AvatarVariant: usr.AvatarVariant, AvatarPalette: usr.AvatarPalette, AvatarPhoto: usr.AvatarPhoto,

backend/internal/api/learning.go

@@ -1,9 +1,11 @@
 package api
 
 import (
+	"errors"
 	"net/http"
 
 	"pargar/backend/internal/observability"
+	"pargar/backend/internal/store"
 )
 
 func (s *Server) handleLearningOverview(w http.ResponseWriter, r *http.Request) {
@@ -21,12 +23,25 @@ func (s *Server) handleLearningStudents(w http.ResponseWriter, r *http.Request)
 	ctx, span := observability.StartSpan(r.Context(), "admin.learning.students")
 	defer span.End()
 	q := r.URL.Query().Get("q")
-	rows, err := s.store.ListStudentLearning(ctx, q)
+	filter := r.URL.Query().Get("filter")
+	switch filter {
+	case "active", "locked":
+	default:
+		filter = ""
+	}
+	sort := r.URL.Query().Get("sort")
+	switch sort {
+	case "progress", "streak", "activity":
+	default:
+		sort = "xp"
+	}
+	p := parsePageParams(r)
+	rows, total, err := s.store.ListStudentLearning(ctx, q, filter, sort, p.PageSize, p.Offset)
 	if err != nil {
 		writeErr(w, http.StatusInternalServerError, "بارگذاری فهرست هنرجویان ممکن نشد")
 		return
 	}
-	writeJSON(w, http.StatusOK, map[string]any{"students": rows})
+	writePage(w, rows, total, p)
 }
 
 func (s *Server) handleUserLearning(w http.ResponseWriter, r *http.Request) {
@@ -34,9 +49,13 @@ func (s *Server) handleUserLearning(w http.ResponseWriter, r *http.Request) {
 	defer span.End()
 	id := routeID(r, "id")
 	detail, err := s.store.UserLearningDetail(ctx, id)
-	if err != nil {
+	if errors.Is(err, store.ErrNotFound) {
 		writeErr(w, http.StatusNotFound, "کاربر پیدا نشد")
 		return
 	}
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, "بارگذاری جزئیات یادگیری ممکن نشد")
+		return
+	}
 	writeJSON(w, http.StatusOK, map[string]any{"learning": detail})
 }

backend/internal/api/media_sign.go

@@ -13,12 +13,28 @@ import (
 	"pargar/backend/internal/models"
 )
 
+// mediaSignWindow keeps one signature for a stretch of time. The same object
+// then keeps the same URL, so clients do not reload a photo that did not change.
+const mediaSignWindow = 15 * time.Minute
+
+func stableMediaExpiry(now time.Time, ttl, window time.Duration) int64 {
+	if window <= 0 {
+		window = mediaSignWindow
+	}
+	if ttl < window {
+		ttl = window
+	}
+	w := int64(window.Seconds())
+	slot := now.Unix() / w
+	return (slot+1)*w + int64(ttl.Seconds())
+}
+
 func (s *Server) signMediaURL(key string) string {
 	key = strings.TrimPrefix(strings.TrimSpace(key), "/")
 	if key == "" {
 		return ""
 	}
-	exp := time.Now().Add(s.cfg.MediaURLTTL).Unix()
+	exp := stableMediaExpiry(time.Now(), s.cfg.MediaURLTTL, mediaSignWindow)
 	sig := mediaHMAC(s.cfg.JWTSecret, key, exp)
 	return fmt.Sprintf("%s/media/%s?exp=%d&sig=%s",
 		s.cfg.PublicURL,

backend/internal/api/media_sign_test.go

@@ -7,6 +7,24 @@ import (
 	"pargar/backend/internal/config"
 )
 
+func TestStableMediaExpiryHoldsInsideWindow(t *testing.T) {
+	start := time.Unix((1_700_000_000/900)*900, 0)
+	ttl := time.Hour
+	window := 15 * time.Minute
+	a := stableMediaExpiry(start, ttl, window)
+	b := stableMediaExpiry(start.Add(14*time.Minute), ttl, window)
+	if a != b {
+		t.Fatalf("same window should keep one expiry: %d vs %d", a, b)
+	}
+	c := stableMediaExpiry(start.Add(15*time.Minute), ttl, window)
+	if c == a {
+		t.Fatal("next window should mint a new expiry")
+	}
+	if c < a {
+		t.Fatal("expiry should move forward")
+	}
+}
+
 func TestMediaSignatureRoundTrip(t *testing.T) {
 	s := &Server{cfg: &config.Config{JWTSecret: "test-secret-at-least-32-chars-long!!", PublicURL: "http://localhost", MediaURLTTL: time.Hour}}
 	url := s.signMediaURL("videos/lesson-1.mp4")

backend/internal/api/profile.go

@@ -0,0 +1,42 @@
+package api
+
+import (
+	"errors"
+	"net/http"
+
+	"pargar/backend/internal/store"
+)
+
+func (s *Server) handlePublicProfile(w http.ResponseWriter, r *http.Request) {
+	id := routeID(r, "id")
+	if id <= 0 {
+		writeErr(w, http.StatusNotFound, "کاربر پیدا نشد")
+		return
+	}
+	u, err := s.store.GetUserByID(r.Context(), id)
+	if err != nil {
+		if errors.Is(err, store.ErrNotFound) {
+			writeErr(w, http.StatusNotFound, "کاربر پیدا نشد")
+			return
+		}
+		writeErr(w, http.StatusInternalServerError, "بارگذاری پروفایل ممکن نشد")
+		return
+	}
+	s.signUserMedia(u)
+	writeJSON(w, http.StatusOK, map[string]any{
+		"user": map[string]any{
+			"id":            u.ID,
+			"name":          u.Name,
+			"username":      u.Username,
+			"role":          u.Role,
+			"xp":            u.XP,
+			"hearts":        u.Hearts,
+			"streakCurrent": u.StreakCurrent,
+			"streakLongest": u.StreakLongest,
+			"avatarVariant": u.AvatarVariant,
+			"avatarPalette": u.AvatarPalette,
+			"avatarPhoto":   u.AvatarPhoto,
+			"isLocked":      u.IsLocked,
+		},
+	})
+}

backend/internal/api/recovery.go

@@ -5,7 +5,7 @@ import (
 )
 
 // Public self-service password recovery is disabled for students.
-// Staff reset passwords from the admin panel (requires the account security answer).
+// Staff set a new password from the admin profile. Public recovery stays off.
 
 func (s *Server) handleRecoveryChallenge(w http.ResponseWriter, r *http.Request) {
 	writeErr(w, http.StatusNotFound, "بازیابی رمز عمومی غیرفعال است")

backend/internal/api/register.go

@@ -27,6 +27,29 @@ func (s *Server) registrationRequireWhitelist(r *http.Request) bool {
 	return s.settingTruthy(r, "registration_require_whitelist", true)
 }
 
+// registrationClientIP returns the IP to bind to a registration when enforcement is on.
+// When REGISTRATION_ENFORCE_IP is false (default), returns "" so NAT / shared egress is ignored.
+func (s *Server) registrationClientIP(w http.ResponseWriter, r *http.Request) (string, bool) {
+	if s.cfg == nil || !s.cfg.RegistrationEnforceIP {
+		return "", true
+	}
+	ip := clientAddress(r)
+	if ip == "" || ip == "unknown" {
+		writeErr(w, http.StatusBadRequest, "آدرس شبکه شناسایی نشد")
+		return "", false
+	}
+	taken, err := s.store.HasRegistrationIP(r.Context(), ip)
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, "بررسی محدودیت ثبت‌نام ممکن نشد")
+		return "", false
+	}
+	if taken {
+		writeErr(w, http.StatusConflict, "از این شبکه قبلاً ثبت‌نام انجام شده است")
+		return "", false
+	}
+	return ip, true
+}
+
 func (s *Server) handleRegisterStatus(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]any{
 		"enabled":          s.registrationEnabled(r),
@@ -83,16 +106,8 @@ func (s *Server) handleRegister(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	ip := clientAddress(r)
+	ip, ok := s.registrationClientIP(w, r)
-	if ip == "" || ip == "unknown" {
+	if !ok {
-		writeErr(w, http.StatusBadRequest, "آدرس شبکه شناسایی نشد")
-		return
-	}
-	if taken, err := s.store.HasRegistrationIP(r.Context(), ip); err != nil {
-		writeErr(w, http.StatusInternalServerError, "بررسی محدودیت ثبت‌نام ممکن نشد")
-		return
-	} else if taken {
-		writeErr(w, http.StatusConflict, "از این شبکه قبلاً ثبت‌نام انجام شده است")
 		return
 	}
 

backend/internal/api/register_test.go

@@ -261,6 +261,7 @@ func TestRegisterDuplicatePhone(t *testing.T) {
 }
 
 func TestRegisterSameIPRejected(t *testing.T) {
+	t.Setenv("REGISTRATION_ENFORCE_IP", "true")
 	e := setup(t)
 	enableRegistration(t, e)
 	whitelistPhones(t, e, "09121110007", "09121110008")
@@ -278,7 +279,27 @@ func TestRegisterSameIPRejected(t *testing.T) {
 	}
 }
 
+func TestRegisterSameIPAllowedWhenEnforcementOff(t *testing.T) {
+	t.Setenv("REGISTRATION_ENFORCE_IP", "false")
+	e := setup(t)
+	enableRegistration(t, e)
+	whitelistPhones(t, e, "09121110007", "09121110008")
+
+	headers := map[string]string{"X-Forwarded-For": "203.0.113.40"}
+	code, body := e.doHeaders(t, "POST", "/api/auth/register", "", headers,
+		registerBody(t, e, "09121110007", "reg-ipoff1@test.dev", "regipoff1"))
+	if code != http.StatusCreated {
+		t.Fatalf("first: %d %v", code, body)
+	}
+	code, body = e.doHeaders(t, "POST", "/api/auth/register", "", headers,
+		registerBody(t, e, "09121110008", "reg-ipoff2@test.dev", "regipoff2"))
+	if code != http.StatusCreated {
+		t.Fatalf("same IP must be allowed when REGISTRATION_ENFORCE_IP=false: %d %v", code, body)
+	}
+}
+
 func TestRegisterUsesForwardedIP(t *testing.T) {
+	t.Setenv("REGISTRATION_ENFORCE_IP", "true")
 	e := setup(t)
 	enableRegistration(t, e)
 	whitelistPhones(t, e, "09121110009", "09121110010", "09121110011")

backend/internal/api/router.go

@@ -56,7 +56,9 @@ func newRouter(s *Server) http.Handler {
 	mux.HandleFunc("GET /api/chats/conversations", s.requireAuth(s.handleConversations))
 	mux.HandleFunc("GET /api/chats/{partner}/messages", s.requireAuth(s.handleChatMessages))
 	mux.HandleFunc("POST /api/chats/{partner}/messages", s.requireAuth(s.handleChatSend))
+	mux.HandleFunc("PUT /api/chats/{partner}/messages/{id}", s.requireAuth(s.handleChatEdit))
 	mux.HandleFunc("DELETE /api/chats/{partner}/messages/{id}", s.requireAuth(s.handleChatDelete))
+	mux.HandleFunc("GET /api/users/{id}", s.requireAuth(s.handlePublicProfile))
 	mux.HandleFunc("POST /api/chats/{partner}/messages/{id}/reaction", s.requireAuth(s.handleChatReact))
 	mux.HandleFunc("POST /api/chats/{partner}/messages/{id}/pin", s.requireAuth(s.handleChatPin))
 	mux.HandleFunc("POST /api/chats/upload", s.requireAuth(s.perUserRateLimit(uploadRateLimit, "upload", s.handleChatUpload)))
@@ -89,6 +91,7 @@ func newRouter(s *Server) http.Handler {
 	mux.HandleFunc("GET /api/admin/users/{id}/learning", staff(s.handleUserLearning))
 	// Account administration is admin-only; mentors may unlock locked students only.
 	mux.HandleFunc("GET /api/admin/users", admin(s.handleAdminListUsers))
+	mux.HandleFunc("GET /api/admin/users/{id}", admin(s.handleAdminGetUser))
 	mux.HandleFunc("POST /api/admin/users", admin(s.handleAdminCreateUser))
 	mux.HandleFunc("POST /api/admin/users/{id}/lock", admin(s.handleAdminLockUser))
 	mux.HandleFunc("POST /api/admin/users/{id}/unlock", staff(s.handleAdminUnlockUser))

backend/internal/api/surfaces_test.go

@@ -0,0 +1,330 @@
+package api_test
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestChatEditOwnMessage(t *testing.T) {
+	e := setup(t)
+	student, studentID := register(t, e, "Chat Editor", "chat-editor@test.dev")
+	admin := login(t, e, bootstrapAdminEmail)
+	code, me := e.do(t, "GET", "/api/auth/me", admin, nil)
+	if code != 200 {
+		t.Fatalf("me: %d %v", code, me)
+	}
+	adminID := int64(me["user"].(map[string]any)["id"].(float64))
+
+	code, body := e.do(t, "POST", "/api/chats/"+itoa(adminID)+"/messages", student, map[string]any{"body": "سلام"})
+	if code != 201 {
+		t.Fatalf("send: %d %v", code, body)
+	}
+	msg := body["message"].(map[string]any)
+	msgID := int64(msg["id"].(float64))
+
+	code, body = e.do(t, "PUT", "/api/chats/"+itoa(adminID)+"/messages/"+itoa(msgID), student, map[string]any{"body": "سلام ویرایش"})
+	if code != 200 {
+		t.Fatalf("edit: %d %v", code, body)
+	}
+	edited := body["message"].(map[string]any)
+	if edited["body"] != "سلام ویرایش" || edited["editedAt"] == nil {
+		t.Fatalf("expected edited body, got %v", edited)
+	}
+
+	code, _ = e.do(t, "PUT", "/api/chats/"+itoa(studentID)+"/messages/"+itoa(msgID), admin, map[string]any{"body": "نه"})
+	if code != 404 {
+		t.Fatalf("partner edit should be rejected: %d", code)
+	}
+
+	code, _ = e.do(t, "PUT", "/api/chats/"+itoa(adminID)+"/messages/"+itoa(msgID), student, map[string]any{"body": "  "})
+	if code != 400 {
+		t.Fatalf("empty edit: %d", code)
+	}
+
+	code, body = e.do(t, "GET", "/api/chats/"+itoa(adminID)+"/messages", student, nil)
+	if code != 200 {
+		t.Fatalf("list: %d %v", code, body)
+	}
+	msgs := body["messages"].([]any)
+	last := msgs[len(msgs)-1].(map[string]any)
+	if last["body"] != "سلام ویرایش" || last["editedAt"] == nil {
+		t.Fatalf("listed message not edited: %v", last)
+	}
+}
+
+func TestChatReplaceAttachment(t *testing.T) {
+	e := setup(t)
+	student, studentID := register(t, e, "Media Editor", "media-editor@test.dev")
+	admin := login(t, e, bootstrapAdminEmail)
+	code, me := e.do(t, "GET", "/api/auth/me", admin, nil)
+	if code != 200 {
+		t.Fatalf("me: %d %v", code, me)
+	}
+	adminID := int64(me["user"].(map[string]any)["id"].(float64))
+
+	png := []byte{0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00}
+	code, up := uploadChatFile(t, e, student, "one.png", png)
+	if code != 201 {
+		t.Fatalf("upload: %d %v", code, up)
+	}
+	first := up["attachment"].(map[string]any)
+
+	code, body := e.do(t, "POST", "/api/chats/"+itoa(adminID)+"/messages", student, map[string]any{
+		"body":       "",
+		"attachment": first,
+	})
+	if code != 201 {
+		t.Fatalf("send: %d %v", code, body)
+	}
+	msg := body["message"].(map[string]any)
+	msgID := int64(msg["id"].(float64))
+	oldPath := mediaPath(msg["attachment"].(map[string]any)["url"])
+
+	png[8] = 0x01
+	code, up = uploadChatFile(t, e, student, "two.png", png)
+	if code != 201 {
+		t.Fatalf("upload replacement: %d %v", code, up)
+	}
+	next := up["attachment"].(map[string]any)
+
+	code, body = e.do(t, "PUT", "/api/chats/"+itoa(adminID)+"/messages/"+itoa(msgID), student, map[string]any{
+		"body":       "",
+		"attachment": next,
+	})
+	if code != 200 {
+		t.Fatalf("replace: %d %v", code, body)
+	}
+	edited := body["message"].(map[string]any)
+	newPath := mediaPath(edited["attachment"].(map[string]any)["url"])
+	if edited["editedAt"] == nil || newPath == "" || newPath == oldPath {
+		t.Fatalf("expected a replaced attachment, old %s new %v", oldPath, edited)
+	}
+	if edited["attachment"].(map[string]any)["type"] != "image" {
+		t.Fatalf("type: %v", edited["attachment"])
+	}
+
+	wrong := map[string]any{"type": "video", "url": next["url"], "name": "clip.mp4", "size": next["size"]}
+	code, _ = e.do(t, "PUT", "/api/chats/"+itoa(adminID)+"/messages/"+itoa(msgID), student, map[string]any{
+		"body":       "",
+		"attachment": wrong,
+	})
+	if code != 404 {
+		t.Fatalf("different kind should miss: %d", code)
+	}
+
+	code, _ = e.do(t, "PUT", "/api/chats/"+itoa(adminID)+"/messages/"+itoa(msgID), student, map[string]any{
+		"body":       "",
+		"attachment": map[string]any{"type": "file", "url": next["url"], "name": "x.pdf", "size": 1},
+	})
+	if code != 400 {
+		t.Fatalf("file replace: %d", code)
+	}
+
+	code, _ = e.do(t, "PUT", "/api/chats/"+itoa(studentID)+"/messages/"+itoa(msgID), admin, map[string]any{
+		"body":       "",
+		"attachment": next,
+	})
+	if code != 400 {
+		t.Fatalf("partner replace: %d", code)
+	}
+}
+
+func TestChatReadMarksOnlyIncoming(t *testing.T) {
+	e := setup(t)
+	student, studentID := register(t, e, "Seen Student", "seen-student@test.dev")
+	admin := login(t, e, bootstrapAdminEmail)
+	code, me := e.do(t, "GET", "/api/auth/me", admin, nil)
+	if code != 200 {
+		t.Fatalf("me: %d %v", code, me)
+	}
+	adminID := int64(me["user"].(map[string]any)["id"].(float64))
+
+	code, body := e.do(t, "POST", "/api/chats/"+itoa(adminID)+"/messages", student, map[string]any{"body": "از هنرجو"})
+	if code != 201 {
+		t.Fatalf("student send: %d %v", code, body)
+	}
+	studentMsg := int64(body["message"].(map[string]any)["id"].(float64))
+
+	code, body = e.do(t, "GET", "/api/chats/"+itoa(adminID)+"/messages", student, nil)
+	if code != 200 {
+		t.Fatalf("student list: %d %v", code, body)
+	}
+	if chatMsg(t, body, studentMsg)["readAt"] != nil {
+		t.Fatalf("opening my own thread marked it seen: %v", chatMsg(t, body, studentMsg))
+	}
+
+	code, body = e.do(t, "GET", "/api/chats/"+itoa(studentID)+"/messages", admin, nil)
+	if code != 200 {
+		t.Fatalf("admin list: %d %v", code, body)
+	}
+	if chatMsg(t, body, studentMsg)["readAt"] == nil {
+		t.Fatalf("partner open should mark the incoming message seen")
+	}
+
+	code, body = e.do(t, "POST", "/api/chats/"+itoa(studentID)+"/messages", admin, map[string]any{"body": "از ادمین"})
+	if code != 201 {
+		t.Fatalf("admin send: %d %v", code, body)
+	}
+	adminMsg := int64(body["message"].(map[string]any)["id"].(float64))
+
+	code, body = e.do(t, "GET", "/api/chats/"+itoa(studentID)+"/messages", admin, nil)
+	if code != 200 {
+		t.Fatalf("admin list again: %d %v", code, body)
+	}
+	if chatMsg(t, body, adminMsg)["readAt"] != nil {
+		t.Fatalf("admin own message was marked seen: %v", chatMsg(t, body, adminMsg))
+	}
+	if chatMsg(t, body, studentMsg)["readAt"] == nil {
+		t.Fatalf("already seen incoming message lost its receipt")
+	}
+}
+
+func chatMsg(t *testing.T, body map[string]any, id int64) map[string]any {
+	t.Helper()
+	for _, raw := range body["messages"].([]any) {
+		msg := raw.(map[string]any)
+		if int64(msg["id"].(float64)) == id {
+			return msg
+		}
+	}
+	t.Fatalf("message %d missing in %v", id, body["messages"])
+	return nil
+}
+
+func mediaPath(raw any) string {
+	s, _ := raw.(string)
+	if i := strings.IndexByte(s, '?'); i >= 0 {
+		return s[:i]
+	}
+	return s
+}
+
+func TestLearningDetailMatchesActiveStudents(t *testing.T) {
+	e := setup(t)
+	admin := login(t, e, bootstrapAdminEmail)
+
+	code, body := e.do(t, "GET", "/api/admin/stats", admin, nil)
+	if code != 200 {
+		t.Fatalf("stats: %d %v", code, body)
+	}
+	if body["stats"].(map[string]any)["users"].(float64) != 0 {
+		t.Fatalf("overview should ignore staff, got %v", body["stats"])
+	}
+
+	_, uid := register(t, e, "Active Student", "active-student@test.dev")
+
+	code, body = e.do(t, "GET", "/api/admin/stats", admin, nil)
+	if code != 200 {
+		t.Fatalf("stats after student: %d %v", code, body)
+	}
+	if body["stats"].(map[string]any)["users"].(float64) != 1 {
+		t.Fatalf("expected 1 active student, got %v", body["stats"])
+	}
+
+	code, body = e.do(t, "GET", "/api/admin/learning/overview", admin, nil)
+	if code != 200 {
+		t.Fatalf("overview: %d %v", code, body)
+	}
+	if body["overview"].(map[string]any)["studentsActive"].(float64) != 1 {
+		t.Fatalf("learning active mismatch: %v", body["overview"])
+	}
+
+	code, body = e.do(t, "GET", "/api/admin/users/"+itoa(uid)+"/learning", admin, nil)
+	if code != 200 {
+		t.Fatalf("learning detail: %d %v", code, body)
+	}
+	user := body["learning"].(map[string]any)["user"].(map[string]any)
+	if user["name"] != "Active Student" {
+		t.Fatalf("detail user: %v", user)
+	}
+
+	code, body = e.do(t, "GET", "/api/admin/users/999999/learning", admin, nil)
+	if code != 404 {
+		t.Fatalf("missing user: %d %v", code, body)
+	}
+
+	code, body = e.do(t, "GET", "/api/admin/learning/students?page=1&pageSize=10", admin, nil)
+	if code != 200 {
+		t.Fatalf("students page: %d %v", code, body)
+	}
+	if body["total"].(float64) != 1 || len(body["items"].([]any)) != 1 {
+		t.Fatalf("expected one page row, got %v", body)
+	}
+}
+
+func TestInviteStatusFilter(t *testing.T) {
+	e := setup(t)
+	admin := login(t, e, bootstrapAdminEmail)
+	code, body := e.do(t, "POST", "/api/admin/invites", admin, map[string]any{"maxUses": 2, "label": "مهر"})
+	if code != 201 {
+		t.Fatalf("create invite: %d %v", code, body)
+	}
+	code, body = e.do(t, "GET", "/api/admin/invites?status=active", admin, nil)
+	if code != 200 {
+		t.Fatalf("active filter: %d %v", code, body)
+	}
+	if body["total"].(float64) < 1 {
+		t.Fatalf("expected active invites, got %v", body)
+	}
+	code, body = e.do(t, "GET", "/api/admin/invites?status=revoked", admin, nil)
+	if code != 200 {
+		t.Fatalf("revoked filter: %d %v", code, body)
+	}
+	if body["total"].(float64) != 0 {
+		t.Fatalf("expected no revoked invites, got %v", body)
+	}
+	code, body = e.do(t, "GET", "/api/admin/invites?status=nope", admin, nil)
+	if code != 400 {
+		t.Fatalf("bad status: %d %v", code, body)
+	}
+}
+
+func TestPublicProfileOmitsPrivateFields(t *testing.T) {
+	e := setup(t)
+	student, studentID := register(t, e, "Public Name", "public-name@test.dev")
+	admin := login(t, e, bootstrapAdminEmail)
+	code, me := e.do(t, "GET", "/api/auth/me", admin, nil)
+	if code != 200 {
+		t.Fatalf("me: %d %v", code, me)
+	}
+	adminID := int64(me["user"].(map[string]any)["id"].(float64))
+
+	code, body := e.do(t, "GET", "/api/users/"+itoa(adminID), student, nil)
+	if code != 200 {
+		t.Fatalf("profile: %d %v", code, body)
+	}
+	user := body["user"].(map[string]any)
+	if user["name"] == nil || user["name"] == "" {
+		t.Fatalf("missing name: %v", user)
+	}
+	if _, ok := user["email"]; ok {
+		t.Fatalf("email must not be public: %v", user)
+	}
+	if _, ok := user["phone"]; ok {
+		t.Fatalf("phone must not be public: %v", user)
+	}
+
+	code, adminView := e.do(t, "GET", "/api/admin/users/"+itoa(studentID), admin, nil)
+	if code != 200 {
+		t.Fatalf("admin user: %d %v", code, adminView)
+	}
+	managed := adminView["user"].(map[string]any)
+	if managed["email"] != "public-name@test.dev" {
+		t.Fatalf("admin should see email: %v", managed)
+	}
+	if _, ok := managed["passwordHash"]; ok {
+		t.Fatalf("password hash must stay hidden: %v", managed)
+	}
+	code, hidden := e.do(t, "GET", "/api/admin/users/"+itoa(adminID), student, nil)
+	if code != 403 {
+		t.Fatalf("student must not open admin user: %d %v", code, hidden)
+	}
+
+	code, body = e.do(t, "GET", "/api/users/"+itoa(studentID), admin, nil)
+	if code != 200 {
+		t.Fatalf("student profile: %d %v", code, body)
+	}
+	if body["user"].(map[string]any)["username"] != "public-name" {
+		t.Fatalf("username: %v", body["user"])
+	}
+}

backend/internal/config/config.go

@@ -46,6 +46,9 @@ type Config struct {
 	PhysicalCertEnabled    bool
 	PhysicalCertPriceIRR   int
 	PhysicalCertWindowDays int
+	// RegistrationEnforceIP limits one successful registration per client IP.
+	// Default false: behind NAT / shared egress the peer IP is not a real client identity.
+	RegistrationEnforceIP bool
 }
 
 func getEnv(key, fallback string) string {
@@ -140,6 +143,7 @@ func Load() *Config {
 		PhysicalCertEnabled:    getEnv("PHYSICAL_CERT_ENABLED", "false") == "true",
 		PhysicalCertPriceIRR:   getEnvInt("PHYSICAL_CERT_PRICE_IRR", 2_500_000),
 		PhysicalCertWindowDays: getEnvInt("PHYSICAL_CERT_WINDOW_DAYS", 30),
+		RegistrationEnforceIP:  getEnv("REGISTRATION_ENFORCE_IP", "false") == "true",
 	}
 }
 

backend/internal/db/migrations/0022_chat_message_edits.sql

@@ -0,0 +1,3 @@
+-- Own-message edits. Nullable so existing rows stay unedited.
+ALTER TABLE chat_messages
+    ADD COLUMN IF NOT EXISTS edited_at TIMESTAMPTZ;

backend/internal/models/models.go

@@ -219,6 +219,7 @@ type ChatMessage struct {
 	ReplyTo    *int64         `json:"replyTo,omitempty"`
 	PinnedAt   *time.Time     `json:"pinnedAt,omitempty"`
 	Pinned     bool           `json:"pinned"`
+	EditedAt   *time.Time     `json:"editedAt,omitempty"`
 	Attachment *Attachment    `json:"attachment,omitempty"`
 	Reactions  []ChatReaction `json:"reactions,omitempty"`
 }

backend/internal/storage/mime_test.go

@@ -0,0 +1,15 @@
+package storage
+
+import "testing"
+
+func TestVoiceNoteContentType(t *testing.T) {
+	if got := mimeType("chats/2-1.weba"); got != "audio/webm" {
+		t.Fatalf("weba: %s", got)
+	}
+	if got := mediaContentType("chats/2-1.weba", "application/octet-stream"); got != "audio/webm" {
+		t.Fatalf("generic store type must not hide the voice type: %s", got)
+	}
+	if got := mediaContentType("chats/2-1.bin", "application/pdf"); got != "application/pdf" {
+		t.Fatalf("unknown extension keeps the stored type: %s", got)
+	}
+}

backend/internal/storage/storage.go

@@ -243,10 +243,11 @@ func (s *S3) Serve(w http.ResponseWriter, r *http.Request, key string) error {
 	}
 	defer result.Body.Close()
 
-	ct := mimeType(key)
+	stored := ""
-	if result.ContentType != nil && *result.ContentType != "" {
+	if result.ContentType != nil {
-		ct = *result.ContentType
+		stored = *result.ContentType
 	}
+	ct := mediaContentType(key, stored)
 	w.Header().Set("Content-Type", ct)
 	setInlineMediaHeaders(w, ct)
 	w.Header().Set("Accept-Ranges", "bytes")
@@ -290,8 +291,20 @@ func mimeType(key string) string {
 		return "video/mp4"
 	case ".webm":
 		return "video/webm"
+	case ".weba":
+		return "audio/webm"
 	case ".mp3":
 		return "audio/mpeg"
+	case ".wav":
+		return "audio/wav"
+	case ".ogg", ".opus":
+		return "audio/ogg"
+	case ".m4a", ".aac":
+		return "audio/mp4"
+	case ".mov":
+		return "video/quicktime"
+	case ".m4v":
+		return "video/mp4"
 	case ".pdf":
 		return "application/pdf"
 	default:
@@ -299,6 +312,23 @@ func mimeType(key string) string {
 	}
 }
 
+// mediaContentType keeps a known extension ahead of a generic object-store type.
+// Voice notes are stored as .weba; a default octet-stream plus nosniff stops playback.
+func mediaContentType(key, stored string) string {
+	guessed := mimeType(key)
+	if guessed != "application/octet-stream" {
+		return guessed
+	}
+	stored = strings.TrimSpace(stored)
+	if i := strings.Index(stored, ";"); i >= 0 {
+		stored = strings.TrimSpace(stored[:i])
+	}
+	if stored != "" {
+		return stored
+	}
+	return guessed
+}
+
 // setInlineMediaHeaders discourages "Save as" download UX while keeping streaming/Range intact.
 func setInlineMediaHeaders(w http.ResponseWriter, contentType string) {
 	if contentType != "" {

backend/internal/store/invites.go

@@ -146,7 +146,7 @@ func (s *Store) CreateRegistrationInvite(
 	return scanInvite(row)
 }
 
-func (s *Store) ListRegistrationInvites(ctx context.Context, query string, limit, offset int) ([]models.RegistrationInvite, int64, error) {
+func (s *Store) ListRegistrationInvites(ctx context.Context, query, status string, limit, offset int) ([]models.RegistrationInvite, int64, error) {
 	if limit <= 0 {
 		limit = 10
 	}
@@ -157,18 +157,21 @@ func (s *Store) ListRegistrationInvites(ctx context.Context, query string, limit
 		offset = 0
 	}
 	query = strings.TrimSpace(query)
+	status = strings.TrimSpace(status)
 	var total int64
 	if err := s.pool.QueryRow(ctx, `
 		SELECT COUNT(*) FROM registration_invites
-		WHERE ($1 = '' OR COALESCE(label, '') ILIKE '%'||$1||'%')`, query).Scan(&total); err != nil {
+		WHERE ($1 = '' OR COALESCE(label, '') ILIKE '%'||$1||'%')
+		  AND ($2 = '' OR status = $2)`, query, status).Scan(&total); err != nil {
 		return nil, 0, err
 	}
 	rows, err := s.pool.Query(ctx, `
 		SELECT `+inviteCols+`
 		FROM registration_invites
 		WHERE ($1 = '' OR COALESCE(label, '') ILIKE '%'||$1||'%')
+		  AND ($2 = '' OR status = $2)
 		ORDER BY created_at DESC
-		LIMIT $2 OFFSET $3`, query, limit, offset)
+		LIMIT $3 OFFSET $4`, query, status, limit, offset)
 	if err != nil {
 		return nil, 0, err
 	}
@@ -344,16 +347,14 @@ func EvaluateInviteAvailability(inv *models.RegistrationInvite, now time.Time) e
 	return nil
 }
 
-// RegisterInviteStudent creates a student, consumes the IP, and atomically consumes one invite seat.
+// RegisterInviteStudent creates a student, optionally records the client IP, and consumes one invite seat.
+// Empty ip skips one-registration-per-IP enforcement (NAT / shared egress).
 func (s *Store) RegisterInviteStudent(
 	ctx context.Context,
 	inviteID int64,
 	name, email, username, passwordHash, phone, securityQuestion, securityAnswerHash, ip string,
 ) (*models.User, error) {
 	ip = strings.TrimSpace(ip)
-	if ip == "" {
-		return nil, errors.New("empty registration ip")
-	}
 	tx, err := s.pool.Begin(ctx)
 	if err != nil {
 		return nil, err
@@ -366,12 +367,14 @@ func (s *Store) RegisterInviteStudent(
 		return nil, ErrPhoneBlacklisted
 	}
 
-	var taken bool
+	if ip != "" {
-	if err := tx.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM registration_ips WHERE ip=$1)`, ip).Scan(&taken); err != nil {
+		var taken bool
-		return nil, err
+		if err := tx.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM registration_ips WHERE ip=$1)`, ip).Scan(&taken); err != nil {
-	}
+			return nil, err
-	if taken {
+		}
-		return nil, ErrRegistrationIPTaken
+		if taken {
+			return nil, ErrRegistrationIPTaken
+		}
 	}
 
 	tag, err := tx.Exec(ctx, `
@@ -436,12 +439,14 @@ func (s *Store) RegisterInviteStudent(
 		ON CONFLICT (user_id) DO NOTHING`, u.ID); err != nil {
 		return nil, err
 	}
-	if _, err := tx.Exec(ctx, `
+	if ip != "" {
-		INSERT INTO registration_ips (ip, user_id) VALUES ($1, $2)`, ip, u.ID); err != nil {
+		if _, err := tx.Exec(ctx, `
-		if isUniqueViolation(err) {
+			INSERT INTO registration_ips (ip, user_id) VALUES ($1, $2)`, ip, u.ID); err != nil {
-			return nil, ErrRegistrationIPTaken
+			if isUniqueViolation(err) {
+				return nil, ErrRegistrationIPTaken
+			}
+			return nil, err
 		}
-		return nil, err
 	}
 	if err := tx.Commit(ctx); err != nil {
 		return nil, err

backend/internal/store/learning.go

@@ -7,17 +7,17 @@ import (
 
 // LearningOverview is cohort-level learning analytics for staff.
 type LearningOverview struct {
-	StudentsActive   int64   `json:"studentsActive"`
+	StudentsActive    int64   `json:"studentsActive"`
-	StudentsLocked   int64   `json:"studentsLocked"`
+	StudentsLocked    int64   `json:"studentsLocked"`
-	StudentsTotal    int64   `json:"studentsTotal"`
+	StudentsTotal     int64   `json:"studentsTotal"`
-	LessonsTotal     int64   `json:"lessonsTotal"`
+	LessonsTotal      int64   `json:"lessonsTotal"`
-	Completions      int64   `json:"completions"`
+	Completions       int64   `json:"completions"`
-	Attempts7d       int64   `json:"attempts7d"`
+	Attempts7d        int64   `json:"attempts7d"`
-	Passes7d         int64   `json:"passes7d"`
+	Passes7d          int64   `json:"passes7d"`
-	PassRate7d       float64 `json:"passRate7d"`
+	PassRate7d        float64 `json:"passRate7d"`
-	AvgWatchPct      float64 `json:"avgWatchPct"`
+	AvgWatchPct       float64 `json:"avgWatchPct"`
-	XPAwarded7d      int64   `json:"xpAwarded7d"`
+	XPAwarded7d       int64   `json:"xpAwarded7d"`
-	StudentsStreaking int64  `json:"studentsStreaking"`
+	StudentsStreaking int64   `json:"studentsStreaking"`
 }
 
 func (s *Store) LearningOverview(ctx context.Context) (*LearningOverview, error) {
@@ -81,10 +81,40 @@ type StudentLearningRow struct {
 	LastActivityAt *time.Time `json:"lastActivityAt,omitempty"`
 }
 
-func (s *Store) ListStudentLearning(ctx context.Context, q string) ([]StudentLearningRow, error) {
+func (s *Store) ListStudentLearning(ctx context.Context, q, filter, sort string, limit, offset int) ([]StudentLearningRow, int64, error) {
+	if limit <= 0 {
+		limit = 10
+	}
+	if limit > 100 {
+		limit = 100
+	}
+	if offset < 0 {
+		offset = 0
+	}
 	var lessonsTotal int64
 	if err := s.pool.QueryRow(ctx, `SELECT count(*) FROM lessons WHERE is_active`).Scan(&lessonsTotal); err != nil {
-		return nil, err
+		return nil, 0, err
+	}
+	where := `u.role = 'student'
+			AND ($1 = '' OR u.name ILIKE '%'||$1||'%' OR u.username ILIKE '%'||$1||'%' OR u.email ILIKE '%'||$1||'%')`
+	switch filter {
+	case "active":
+		where += ` AND u.is_active AND NOT u.is_locked`
+	case "locked":
+		where += ` AND u.is_locked`
+	}
+	order := `u.xp DESC, u.id ASC`
+	switch sort {
+	case "progress":
+		order = `COALESCE(p.passed, 0) DESC, u.id ASC`
+	case "streak":
+		order = `u.streak_current DESC, u.id ASC`
+	case "activity":
+		order = `u.last_activity_date DESC NULLS LAST, u.id ASC`
+	}
+	var total int64
+	if err := s.pool.QueryRow(ctx, `SELECT COUNT(*) FROM users u WHERE `+where, q).Scan(&total); err != nil {
+		return nil, 0, err
 	}
 	rows, err := s.pool.Query(ctx, `
 		SELECT u.id, u.name, u.username, u.email, u.xp, u.hearts, u.streak_current,
@@ -105,12 +135,11 @@ func (s *Store) ListStudentLearning(ctx context.Context, q string) ([]StudentLea
 			WHERE created_at >= now() - interval '7 days'
 			GROUP BY user_id
 		) a ON a.user_id = u.id
-		WHERE u.role = 'student'
+		WHERE `+where+`
-			AND ($1 = '' OR u.name ILIKE '%'||$1||'%' OR u.username ILIKE '%'||$1||'%' OR u.email ILIKE '%'||$1||'%')
+		ORDER BY `+order+`
-		ORDER BY u.xp DESC, u.id ASC
+		LIMIT $2 OFFSET $3`, q, limit, offset)
-		LIMIT 500`, q)
 	if err != nil {
-		return nil, err
+		return nil, 0, err
 	}
 	defer rows.Close()
 	out := make([]StudentLearningRow, 0)
@@ -122,7 +151,7 @@ func (s *Store) ListStudentLearning(ctx context.Context, q string) ([]StudentLea
 			&r.IsLocked, &r.IsActive, &r.LastActivityAt,
 			&r.LessonsPassed, &r.Attempts7d, &r.Passes7d,
 		); err != nil {
-			return nil, err
+			return nil, 0, err
 		}
 		if r.LessonsTotal > 0 {
 			r.ProgressPct = float64(r.LessonsPassed) / float64(r.LessonsTotal) * 100
@@ -132,21 +161,21 @@ func (s *Store) ListStudentLearning(ctx context.Context, q string) ([]StudentLea
 		}
 		out = append(out, r)
 	}
-	return out, rows.Err()
+	return out, total, rows.Err()
 }
 
 type LessonLearningDetail struct {
-	LessonID        int64      `json:"lessonId"`
+	LessonID          int64      `json:"lessonId"`
-	ChapterID       int64      `json:"chapterId"`
+	ChapterID         int64      `json:"chapterId"`
-	ChapterTitle    string     `json:"chapterTitle"`
+	ChapterTitle      string     `json:"chapterTitle"`
-	Title           string     `json:"title"`
+	Title             string     `json:"title"`
-	SortOrder       int        `json:"sortOrder"`
+	SortOrder         int        `json:"sortOrder"`
-	WatchedPct      float64    `json:"watchedPct"`
+	WatchedPct        float64    `json:"watchedPct"`
-	QuizUnlocked    bool       `json:"quizUnlocked"`
+	QuizUnlocked      bool       `json:"quizUnlocked"`
-	PassedQuiz      bool       `json:"passedQuiz"`
+	PassedQuiz        bool       `json:"passedQuiz"`
-	QuizCompletedAt *time.Time `json:"quizCompletedAt,omitempty"`
+	QuizCompletedAt   *time.Time `json:"quizCompletedAt,omitempty"`
-	LastAttemptStatus string   `json:"lastAttemptStatus,omitempty"`
+	LastAttemptStatus string     `json:"lastAttemptStatus,omitempty"`
-	LastAttemptScore  float64  `json:"lastAttemptScore,omitempty"`
+	LastAttemptScore  float64    `json:"lastAttemptScore,omitempty"`
 }
 
 type AttemptLearningDetail struct {
@@ -178,11 +207,11 @@ type WatchSessionDetail struct {
 }
 
 type UserLearningDetail struct {
-	User      StudentLearningRow      `json:"user"`
+	User     StudentLearningRow      `json:"user"`
-	Lessons   []LessonLearningDetail  `json:"lessons"`
+	Lessons  []LessonLearningDetail  `json:"lessons"`
-	Attempts  []AttemptLearningDetail `json:"attempts"`
+	Attempts []AttemptLearningDetail `json:"attempts"`
-	XPEvents  []XPEventDetail         `json:"xpEvents"`
+	XPEvents []XPEventDetail         `json:"xpEvents"`
-	Sessions  []WatchSessionDetail    `json:"sessions"`
+	Sessions []WatchSessionDetail    `json:"sessions"`
 }
 
 func (s *Store) UserLearningDetail(ctx context.Context, userID int64) (*UserLearningDetail, error) {
@@ -190,30 +219,28 @@ func (s *Store) UserLearningDetail(ctx context.Context, userID int64) (*UserLear
 	if err != nil {
 		return nil, err
 	}
-	list, err := s.ListStudentLearning(ctx, "")
+	row := StudentLearningRow{
-	if err != nil {
+		ID: u.ID, Name: u.Name, Username: u.Username, Email: u.Email,
+		XP: u.XP, Hearts: u.Hearts, StreakCurrent: u.StreakCurrent,
+		IsLocked: u.IsLocked, IsActive: u.IsActive, LastActivityAt: u.LastActivityDate,
+	}
+	if err := s.pool.QueryRow(ctx, `SELECT count(*) FROM lessons WHERE is_active`).Scan(&row.LessonsTotal); err != nil {
 		return nil, err
 	}
-	var row StudentLearningRow
+	if err := s.pool.QueryRow(ctx, `SELECT count(*) FROM lesson_progress WHERE user_id=$1 AND passed_quiz`, userID).Scan(&row.LessonsPassed); err != nil {
-	found := false
+		return nil, err
-	for _, r := range list {
-		if r.ID == userID {
-			row = r
-			found = true
-			break
-		}
 	}
-	if !found {
+	if row.LessonsTotal > 0 {
-		row = StudentLearningRow{
+		row.ProgressPct = float64(row.LessonsPassed) / float64(row.LessonsTotal) * 100
-			ID: u.ID, Name: u.Name, Username: u.Username, Email: u.Email,
+	}
-			XP: u.XP, Hearts: u.Hearts, StreakCurrent: u.StreakCurrent,
+	if err := s.pool.QueryRow(ctx, `
-			IsLocked: u.IsLocked, IsActive: u.IsActive, LastActivityAt: u.LastActivityDate,
+		SELECT COUNT(*), COUNT(*) FILTER (WHERE status='passed')
-		}
+		FROM quiz_attempts
-		_ = s.pool.QueryRow(ctx, `SELECT count(*) FROM lessons WHERE is_active`).Scan(&row.LessonsTotal)
+		WHERE user_id=$1 AND created_at >= now() - interval '7 days'`, userID).Scan(&row.Attempts7d, &row.Passes7d); err != nil {
-		_ = s.pool.QueryRow(ctx, `SELECT count(*) FROM lesson_progress WHERE user_id=$1 AND passed_quiz`, userID).Scan(&row.LessonsPassed)
+		return nil, err
-		if row.LessonsTotal > 0 {
+	}
-			row.ProgressPct = float64(row.LessonsPassed) / float64(row.LessonsTotal) * 100
+	if row.Attempts7d > 0 {
-		}
+		row.PassRate7d = float64(row.Passes7d) / float64(row.Attempts7d) * 100
 	}
 
 	detail := &UserLearningDetail{User: row, Lessons: []LessonLearningDetail{}, Attempts: []AttemptLearningDetail{}, XPEvents: []XPEventDetail{}, Sessions: []WatchSessionDetail{}}
@@ -221,7 +248,7 @@ func (s *Store) UserLearningDetail(ctx context.Context, userID int64) (*UserLear
 	lrows, err := s.pool.Query(ctx, `
 		SELECT l.id, l.chapter_id, c.title, l.title, l.sort_order,
 			COALESCE(p.watched_pct, 0), COALESCE(p.quiz_unlocked, false), COALESCE(p.passed_quiz, false), p.quiz_completed_at,
-			COALESCE(la.status, ''), COALESCE(la.score_pct, 0)
+			COALESCE(la.status::text, ''), COALESCE(la.score_pct, 0)
 		FROM lessons l
 		JOIN chapters c ON c.id = l.chapter_id
 		LEFT JOIN lesson_progress p ON p.lesson_id = l.id AND p.user_id = $1

backend/internal/store/learning_test.go

@@ -28,7 +28,7 @@ func TestLearningOverviewSmoke(t *testing.T) {
 	if o == nil {
 		t.Fatal("nil overview")
 	}
-	students, err := st.ListStudentLearning(ctx, "")
+	students, _, err := st.ListStudentLearning(ctx, "", "", "xp", 10, 0)
 	if err != nil {
 		t.Fatal(err)
 	}

backend/internal/store/store.go

@@ -331,18 +331,15 @@ func (s *Store) HasRegistrationIP(ctx context.Context, ip string) (bool, error)
 	return exists, err
 }
 
-// RegisterPublicStudent creates a student and consumes the IP atomically.
+// RegisterPublicStudent creates a student and optionally records the client IP.
 // When requireWhitelist is true, the phone must be an available whitelist entry.
-// Concurrent same-IP registrations: one commits; the other rolls back on unique IP conflict.
+// Empty ip skips one-registration-per-IP enforcement (NAT / shared egress).
 func (s *Store) RegisterPublicStudent(
 	ctx context.Context,
 	name, email, username, passwordHash, phone, securityQuestion, securityAnswerHash, ip string,
 	requireWhitelist bool,
 ) (*models.User, error) {
 	ip = strings.TrimSpace(ip)
-	if ip == "" {
-		return nil, errors.New("empty registration ip")
-	}
 	tx, err := s.pool.Begin(ctx)
 	if err != nil {
 		return nil, err
@@ -355,12 +352,14 @@ func (s *Store) RegisterPublicStudent(
 		return nil, ErrPhoneBlacklisted
 	}
 
-	var taken bool
+	if ip != "" {
-	if err := tx.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM registration_ips WHERE ip=$1)`, ip).Scan(&taken); err != nil {
+		var taken bool
-		return nil, err
+		if err := tx.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM registration_ips WHERE ip=$1)`, ip).Scan(&taken); err != nil {
-	}
+			return nil, err
-	if taken {
+		}
-		return nil, ErrRegistrationIPTaken
+		if taken {
+			return nil, ErrRegistrationIPTaken
+		}
 	}
 
 	row := tx.QueryRow(ctx, `
@@ -380,12 +379,14 @@ func (s *Store) RegisterPublicStudent(
 		ON CONFLICT (user_id) DO NOTHING`, u.ID); err != nil {
 		return nil, err
 	}
-	if _, err := tx.Exec(ctx, `
+	if ip != "" {
-		INSERT INTO registration_ips (ip, user_id) VALUES ($1, $2)`, ip, u.ID); err != nil {
+		if _, err := tx.Exec(ctx, `
-		if isUniqueViolation(err) {
+			INSERT INTO registration_ips (ip, user_id) VALUES ($1, $2)`, ip, u.ID); err != nil {
-			return nil, ErrRegistrationIPTaken
+			if isUniqueViolation(err) {
+				return nil, ErrRegistrationIPTaken
+			}
+			return nil, err
 		}
-		return nil, err
 	}
 	if err := tx.Commit(ctx); err != nil {
 		return nil, err
@@ -503,7 +504,26 @@ func (s *Store) GetPhysicalOrder(ctx context.Context, id int64) (*models.Certifi
 	return scanPhysicalOrder(row)
 }
 
-func (s *Store) ListPhysicalOrders(ctx context.Context, status string) ([]models.CertificatePhysicalOrder, error) {
+func (s *Store) ListPhysicalOrders(ctx context.Context, status string, limit, offset int) ([]models.CertificatePhysicalOrder, int64, error) {
+	if limit <= 0 {
+		limit = 10
+	}
+	if limit > 100 {
+		limit = 100
+	}
+	if offset < 0 {
+		offset = 0
+	}
+	where := ""
+	args := []any{}
+	if status != "" {
+		where = ` WHERE o.status=$1`
+		args = append(args, status)
+	}
+	var total int64
+	if err := s.pool.QueryRow(ctx, `SELECT COUNT(*) FROM certificate_physical_orders o`+where, args...).Scan(&total); err != nil {
+		return nil, 0, err
+	}
 	q := `
 		SELECT o.id, o.certificate_id, o.user_id, o.status, o.note,
 			o.recipient_name, o.phone, o.address, o.city, o.postal_code, o.tracking_code,
@@ -511,16 +531,11 @@ func (s *Store) ListPhysicalOrders(ctx context.Context, status string) ([]models
 			u.name, c.public_id
 		FROM certificate_physical_orders o
 		JOIN users u ON u.id = o.user_id
-		JOIN certificates c ON c.id = o.certificate_id`
+		JOIN certificates c ON c.id = o.certificate_id` + where + ` ORDER BY o.created_at DESC LIMIT $` + strconv.Itoa(len(args)+1) + ` OFFSET $` + strconv.Itoa(len(args)+2)
-	args := []any{}
+	args = append(args, limit, offset)
-	if status != "" {
-		q += ` WHERE o.status=$1`
-		args = append(args, status)
-	}
-	q += ` ORDER BY o.created_at DESC LIMIT 200`
 	rows, err := s.pool.Query(ctx, q, args...)
 	if err != nil {
-		return nil, err
+		return nil, 0, err
 	}
 	defer rows.Close()
 	out := make([]models.CertificatePhysicalOrder, 0)
@@ -529,11 +544,11 @@ func (s *Store) ListPhysicalOrders(ctx context.Context, status string) ([]models
 		if err := rows.Scan(&o.ID, &o.CertificateID, &o.UserID, &o.Status, &o.Note,
 			&o.RecipientName, &o.Phone, &o.Address, &o.City, &o.PostalCode, &o.TrackingCode,
 			&o.WindowEndsAt, &o.CreatedAt, &o.UpdatedAt, &o.UserName, &o.PublicID); err != nil {
-			return nil, err
+			return nil, 0, err
 		}
 		out = append(out, o)
 	}
-	return out, rows.Err()
+	return out, total, rows.Err()
 }
 
 func (s *Store) UpdatePhysicalOrder(ctx context.Context, id int64, status models.PhysicalOrderStatus, note, tracking string) (*models.CertificatePhysicalOrder, error) {
@@ -1068,7 +1083,7 @@ func (s *Store) AddChatMessage(ctx context.Context, userID, mentorID int64, send
 		INSERT INTO chat_messages (user_id, mentor_id, sender_role, body, reply_to, attachment_type, attachment_url, attachment_name, attachment_size)
 		VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9)
 		RETURNING id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at`,
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at`,
 		userID, mentorID, senderRole.String(), body, replyTo, attType, attURL, attName, attSize)
 	return scanMessage(row)
 }
@@ -1093,7 +1108,7 @@ func (s *Store) ImportChatMessage(ctx context.Context, userID, mentorID int64, s
 		INSERT INTO chat_messages (user_id, mentor_id, sender_role, body, attachment_type, attachment_url, attachment_name, attachment_size, created_at, pinned_at)
 		VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10)
 		RETURNING id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at`,
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at`,
 		userID, mentorID, senderRole.String(), body, attType, attURL, attName, attSize, createdAt, pinnedAt)
 	return scanMessage(row)
 }
@@ -1137,6 +1152,48 @@ func (s *Store) DeleteChatMessage(ctx context.Context, meID, partnerID, msgID in
 	return tag.RowsAffected() > 0, nil
 }
 
+// ReplaceChatAttachment swaps the photo, video, or voice on one of my messages and marks it edited.
+// The new type must match the current attachment.
+func (s *Store) ReplaceChatAttachment(ctx context.Context, meID, partnerID, msgID int64, meRole models.Role, body, attType, attURL, attName string, attSize int64) (*models.ChatMessage, error) {
+	row := s.pool.QueryRow(ctx, `
+		UPDATE chat_messages
+		SET body=$1, edited_at=now(),
+		    attachment_type=$2, attachment_url=$3, attachment_name=$4, attachment_size=$5
+		WHERE id=$6
+		  AND ((user_id=$7 AND mentor_id=$8) OR (user_id=$8 AND mentor_id=$7))
+		  AND sender_role=$9
+		  AND (user_id=$7 OR mentor_id=$7)
+		  AND attachment_type=$2
+		RETURNING id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at`,
+		body, attType, attURL, attName, attSize, msgID, meID, partnerID, meRole.String())
+	m, err := scanMessage(row)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	return m, err
+}
+
+// EditChatMessage replaces the body of one of my own messages in this conversation.
+func (s *Store) EditChatMessage(ctx context.Context, meID, partnerID, msgID int64, meRole models.Role, body string) (*models.ChatMessage, error) {
+	row := s.pool.QueryRow(ctx, `
+		UPDATE chat_messages
+		SET body=$1, edited_at=now()
+		WHERE id=$2
+		  AND ((user_id=$3 AND mentor_id=$4) OR (user_id=$4 AND mentor_id=$3))
+		  AND sender_role=$5
+		  AND (user_id=$3 OR mentor_id=$3)
+		  AND ($1 <> '' OR attachment_url IS NOT NULL)
+		RETURNING id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at`,
+		body, msgID, meID, partnerID, meRole.String())
+	m, err := scanMessage(row)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	return m, err
+}
+
 const maxPinnedMessages = 3
 
 // TogglePinChatMessage pins or unpins a message. If already at the pin limit,
@@ -1159,7 +1216,7 @@ func (s *Store) TogglePinChatMessage(ctx context.Context, meID, partnerID, msgID
 		out := s.pool.QueryRow(ctx, `
 			UPDATE chat_messages SET pinned_at=NULL WHERE id=$1
 			RETURNING id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-				attachment_type, attachment_url, attachment_name, attachment_size, pinned_at`, msgID)
+				attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at`, msgID)
 		return scanMessage(out)
 	}
 	var n int
@@ -1187,7 +1244,7 @@ func (s *Store) TogglePinChatMessage(ctx context.Context, meID, partnerID, msgID
 	out := s.pool.QueryRow(ctx, `
 		UPDATE chat_messages SET pinned_at=now() WHERE id=$1
 		RETURNING id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at`, msgID)
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at`, msgID)
 	return scanMessage(out)
 }
 
@@ -1195,7 +1252,7 @@ func (s *Store) TogglePinChatMessage(ctx context.Context, meID, partnerID, msgID
 func (s *Store) ListPinnedChatMessages(ctx context.Context, userID, mentorID int64) ([]models.ChatMessage, error) {
 	rows, err := s.pool.Query(ctx, `
 		SELECT id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at
 		FROM chat_messages
 		WHERE pinned_at IS NOT NULL
 		  AND ((user_id=$1 AND mentor_id=$2) OR (user_id=$2 AND mentor_id=$1))
@@ -1221,7 +1278,7 @@ func (s *Store) ListPinnedChatMessages(ctx context.Context, userID, mentorID int
 func (s *Store) ListChatMessages(ctx context.Context, userID, mentorID, before, limit int64) ([]models.ChatMessage, error) {
 	rows, err := s.pool.Query(ctx, `
 		SELECT id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at
 		FROM chat_messages
 		WHERE ((user_id=$1 AND mentor_id=$2) OR (user_id=$2 AND mentor_id=$1))
 		  AND ($3 = 0 OR id < $3)
@@ -1269,7 +1326,7 @@ func (s *Store) ListChatMessagesAround(ctx context.Context, userID, partnerID, a
 
 	older, err := s.pool.Query(ctx, `
 		SELECT id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at
 		FROM chat_messages
 		WHERE ((user_id=$1 AND mentor_id=$2) OR (user_id=$2 AND mentor_id=$1))
 		  AND id <= $3
@@ -1301,7 +1358,7 @@ func (s *Store) ListChatMessagesAround(ctx context.Context, userID, partnerID, a
 
 	newer, err := s.pool.Query(ctx, `
 		SELECT id, user_id, mentor_id, sender_role, body, read_at, created_at, reply_to,
-			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at
+			attachment_type, attachment_url, attachment_name, attachment_size, pinned_at, edited_at
 		FROM chat_messages
 		WHERE ((user_id=$1 AND mentor_id=$2) OR (user_id=$2 AND mentor_id=$1))
 		  AND id > $3
@@ -1344,7 +1401,7 @@ func scanMessage(row messageScanner) (*models.ChatMessage, error) {
 	var attSize *int64
 	if err := row.Scan(
 		&m.ID, &m.UserID, &m.MentorID, &m.SenderRole, &m.Body, &m.ReadAt, &m.CreatedAt, &m.ReplyTo,
-		&attType, &attURL, &attName, &attSize, &m.PinnedAt,
+		&attType, &attURL, &attName, &attSize, &m.PinnedAt, &m.EditedAt,
 	); err != nil {
 		return nil, err
 	}
@@ -1371,11 +1428,20 @@ func derefInt(p *int64) int64 {
 	return *p
 }
 
-func (s *Store) MarkChatRead(ctx context.Context, userID, mentorID int64) error {
+// MarkChatRead stamps messages the other person sent. Opening the thread must not
-	_, err := s.pool.Exec(ctx, `
+// mark my own messages as seen.
-		UPDATE chat_messages SET read_at=now() WHERE (user_id=$1 AND mentor_id=$2) OR (user_id=$2 AND mentor_id=$1)`,
+func (s *Store) MarkChatRead(ctx context.Context, meID, partnerID int64, meRole models.Role) (int64, error) {
-		userID, mentorID)
+	tag, err := s.pool.Exec(ctx, `
-	return err
+		UPDATE chat_messages
+		SET read_at=now()
+		WHERE read_at IS NULL
+		  AND sender_role <> $3
+		  AND ((user_id=$1 AND mentor_id=$2) OR (user_id=$2 AND mentor_id=$1))`,
+		meID, partnerID, meRole.String())
+	if err != nil {
+		return 0, err
+	}
+	return tag.RowsAffected(), nil
 }
 
 // MessageInConversation reports whether a message belongs to a given pair.
@@ -1742,7 +1808,7 @@ func (s *Store) AllActiveUserIDs(ctx context.Context) ([]int64, error) {
 
 func (s *Store) Stats(ctx context.Context) (map[string]any, error) {
 	var users, lessons, questions, events, completions int64
-	if err := s.pool.QueryRow(ctx, `SELECT count(*) FROM users`).Scan(&users); err != nil {
+	if err := s.pool.QueryRow(ctx, `SELECT count(*) FROM users WHERE role='student' AND is_active`).Scan(&users); err != nil {
 		return nil, err
 	}
 	if err := s.pool.QueryRow(ctx, `SELECT count(*) FROM lessons`).Scan(&lessons); err != nil {

deploy/README.md

@@ -0,0 +1,62 @@
+# Pargar deploy
+
+Full deployment guide and production checklist: **[`docs/deployment.md`](../docs/deployment.md)**  
+Security & secrets: [`docs/security.md`](../docs/security.md) · Ops / backup: [`docs/operations.md`](../docs/operations.md)
+
+Edge: **Traefik v3.7** (Compose needs Traefik ≥3.6.1 on Docker Engine 29+).
+
+## Layout
+
+```text
+deploy/
+  compose/
+    compose.yaml          # shared app + data + Traefik labels
+    compose.dev.yaml      # laptop TLS default, DB ports on 127.0.0.1
+    compose.prod.yaml     # Let's Encrypt, no host DB ports
+  traefik/dynamic/        # middlewares
+  helm/pargar/            # chart + values-k3s / values-prod
+scripts/
+  compose-dev.sh  compose-prod.sh  k3s-load-images.sh  helm-k3s.sh  backup.sh
+```
+
+## Compose — development
+
+```bash
+cp .env.example .env
+./scripts/compose-dev.sh up -d --build
+```
+
+- App: https://localhost
+- Traefik dashboard: http://127.0.0.1:8088
+
+## Compose — production
+
+```bash
+cp .env.prod.example .env.prod
+./scripts/compose-prod.sh up -d --build
+```
+
+## k3s + Helm
+
+```bash
+./scripts/k3s-load-images.sh
+./scripts/helm-k3s.sh
+curl -k https://pargar.local/api/health
+```
+
+```bash
+kubectl -n pargar get secret pargar-app -o jsonpath='{.data.admin-password}' | base64 -d; echo
+```
+
+Values: `values.yaml` · `values-k3s.yaml` · `values-prod.yaml`  
+Lint: `helm lint ./deploy/helm/pargar -f ./deploy/helm/pargar/values-k3s.yaml`
+
+## Routing
+
+| Path | Service |
+|------|---------|
+| `/api/*`, `/media/*` | backend |
+| `/api/certificates/*`, `/c/*` | backend + noindex |
+| else | frontend |
+
+WS: `/api/ws` via Traefik.

deploy/compose/compose.dev.yaml

@@ -0,0 +1,96 @@
+# Local / staging-on-laptop overlay (Traefik + published data ports + mild limits).
+# Usage: see compose.yaml header or scripts/compose-dev.sh
+
+services:
+  postgres:
+    ports:
+      - "127.0.0.1:5432:5432"
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+
+  redis:
+    ports:
+      - "127.0.0.1:6379:6379"
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+
+  rustfs:
+    environment:
+      RUSTFS_CONSOLE_ENABLE: "true"
+    ports:
+      - "127.0.0.1:9000:9000"
+      - "127.0.0.1:9001:9001"
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+
+  backend:
+    environment:
+      DEV_MODE: ${DEV_MODE:-false}
+      SEED_CURRICULUM: ${SEED_CURRICULUM:-false}
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+
+  frontend:
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+
+  traefik:
+    # v3.6.1+ required for Docker Engine 29+ API negotiation
+    image: traefik@sha256:24841fe2de7304c149343d877d2923b4c8800a38ba015dea9174c23b20e344a0
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    command:
+      - --providers.docker=true
+      - --providers.docker.exposedbydefault=false
+      - --providers.docker.network=pargar_pargar
+      - --providers.file.directory=/etc/traefik/dynamic
+      - --providers.file.watch=true
+      - --entrypoints.web.address=:80
+      - --entrypoints.websecure.address=:443
+      - --entrypoints.web.http.redirections.entrypoint.to=websecure
+      - --entrypoints.web.http.redirections.entrypoint.scheme=https
+      - --entrypoints.web.http.redirections.entrypoint.permanent=true
+      - --entrypoints.web.http.aliasHeadersStrategy=delete
+      - --entrypoints.websecure.http.aliasHeadersStrategy=delete
+      # Dev: Traefik default certificate (browser warning expected on localhost).
+      - --api.dashboard=true
+      - --api.insecure=true
+      - --log.level=INFO
+      - --accesslog=true
+      - --ping=true
+      - --global.checkNewVersion=false
+    ports:
+      - "80:80"
+      - "443:443"
+      # Dashboard only on loopback
+      - "127.0.0.1:8088:8080"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - ../traefik/dynamic:/etc/traefik/dynamic:ro
+    depends_on:
+      backend:
+        condition: service_healthy
+      frontend:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "traefik", "healthcheck", "--ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 10
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+    networks:
+      - pargar

deploy/compose/compose.prod.yaml

@@ -0,0 +1,112 @@
+# Internet-facing production overlay (Traefik + Let's Encrypt, no host DB ports).
+# Usage:
+#   docker compose -f deploy/compose/compose.yaml -f deploy/compose/compose.prod.yaml \
+#     --env-file .env.prod up -d --build
+#
+# Requires: DOMAIN (public DNS), ACME_EMAIL, PUBLIC_URL=https://$DOMAIN, strong secrets.
+
+services:
+  postgres:
+    # No host ports — only reachable on the compose network.
+    deploy:
+      resources:
+        limits:
+          memory: 1G
+
+  redis:
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+
+  rustfs:
+    environment:
+      RUSTFS_CONSOLE_ENABLE: "false"
+    deploy:
+      resources:
+        limits:
+          memory: 1G
+
+  backend:
+    environment:
+      DEV_MODE: "false"
+      SEED_CURRICULUM: "false"
+    labels:
+      - traefik.http.routers.pargar-api.tls.certresolver=le
+      - traefik.http.routers.pargar-cert-api.tls.certresolver=le
+    deploy:
+      resources:
+        limits:
+          memory: 1G
+        reservations:
+          memory: 256M
+
+  frontend:
+    labels:
+      - traefik.http.routers.pargar-web.tls.certresolver=le
+      - traefik.http.routers.pargar-cert-web.tls.certresolver=le
+    deploy:
+      resources:
+        limits:
+          memory: 1G
+        reservations:
+          memory: 256M
+
+  traefik:
+    # v3.6.1+ required for Docker Engine 29+ API negotiation
+    image: traefik@sha256:24841fe2de7304c149343d877d2923b4c8800a38ba015dea9174c23b20e344a0
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    command:
+      - --providers.docker=true
+      - --providers.docker.exposedbydefault=false
+      - --providers.docker.network=pargar_pargar
+      - --providers.file.directory=/etc/traefik/dynamic
+      - --providers.file.watch=true
+      - --entrypoints.web.address=:80
+      - --entrypoints.websecure.address=:443
+      - --entrypoints.web.http.redirections.entrypoint.to=websecure
+      - --entrypoints.web.http.redirections.entrypoint.scheme=https
+      - --entrypoints.web.http.redirections.entrypoint.permanent=true
+      - --entrypoints.web.http.aliasHeadersStrategy=delete
+      - --entrypoints.websecure.http.aliasHeadersStrategy=delete
+      - --certificatesresolvers.le.acme.email=${ACME_EMAIL:?ACME_EMAIL must be set}
+      - --certificatesresolvers.le.acme.storage=/data/acme.json
+      - --certificatesresolvers.le.acme.httpchallenge=true
+      - --certificatesresolvers.le.acme.httpchallenge.entrypoint=web
+      - --api.dashboard=false
+      - --log.level=WARN
+      - --accesslog=true
+      - --ping=true
+      - --global.checkNewVersion=false
+      - --serversTransport.forwardingTimeouts.dialTimeout=10s
+      - --serversTransport.forwardingTimeouts.responseHeaderTimeout=60s
+    ports:
+      - "80:80"
+      - "[::]:80:80"
+      - "443:443"
+      - "[::]:443:443"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - ../traefik/dynamic:/etc/traefik/dynamic:ro
+      - traefik_data:/data
+    depends_on:
+      backend:
+        condition: service_healthy
+      frontend:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "traefik", "healthcheck", "--ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 10
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+    networks:
+      - pargar
+
+volumes:
+  traefik_data:

deploy/compose/compose.yaml

@@ -0,0 +1,184 @@
+# Shared services — always combine with compose.dev.yaml or compose.prod.yaml:
+#
+#   Dev:  docker compose -f deploy/compose/compose.yaml -f deploy/compose/compose.dev.yaml up -d --build
+#   Prod: docker compose -f deploy/compose/compose.yaml -f deploy/compose/compose.prod.yaml --env-file .env.prod up -d --build
+#
+# Or use scripts/compose-dev.sh / scripts/compose-prod.sh / root docker-compose.yml (dev default).
+
+name: pargar
+
+x-backend-env: &backend-env
+  PORT: "8080"
+  DATABASE_URL: postgres://${POSTGRES_USER:-pargar}:${POSTGRES_PASSWORD:?POSTGRES_PASSWORD must be set}@postgres:5432/${POSTGRES_DB:-pargar}?sslmode=disable
+  REDIS_URL: redis://:${REDIS_PASSWORD:?REDIS_PASSWORD must be set}@redis:6379
+  JWT_SECRET: ${JWT_SECRET:?JWT_SECRET must be set}
+  PUBLIC_URL: ${PUBLIC_URL:?PUBLIC_URL must be set}
+  FRONTEND_ORIGINS: ${FRONTEND_ORIGINS:?FRONTEND_ORIGINS must be set}
+  METRICS_TOKEN: ${METRICS_TOKEN:-}
+  TRUSTED_PROXY_CIDRS: ${TRUSTED_PROXY_CIDRS:-}
+  STORAGE_DRIVER: s3
+  STORAGE_ENDPOINT: http://rustfs:9000
+  STORAGE_REGION: ${STORAGE_REGION:-us-east-1}
+  STORAGE_ACCESS_KEY: ${RUSTFS_ACCESS_KEY:?RUSTFS_ACCESS_KEY must be set}
+  STORAGE_SECRET_KEY: ${RUSTFS_SECRET_KEY:?RUSTFS_SECRET_KEY must be set}
+  STORAGE_BUCKET: ${STORAGE_BUCKET:-pargar}
+  SEED_CURRICULUM: ${SEED_CURRICULUM:-false}
+  REGISTRATION_ENFORCE_IP: ${REGISTRATION_ENFORCE_IP:-false}
+  ADMIN_NAME: ${ADMIN_NAME:-Admin}
+  ADMIN_USERNAME: ${ADMIN_USERNAME:-admin}
+  ADMIN_EMAIL: ${ADMIN_EMAIL:-admin@example.com}
+  ADMIN_PASSWORD: ${ADMIN_PASSWORD:?ADMIN_PASSWORD must be set}
+  OTEL_EXPORTER_OTLP_ENDPOINT: ${OTEL_EXPORTER_OTLP_ENDPOINT:-}
+  OTEL_SERVICE_NAME: ${OTEL_SERVICE_NAME:-pargar-api}
+  DONATION_ENABLED: ${DONATION_ENABLED:-true}
+  DONATION_NOTE: ${DONATION_NOTE:-}
+  PHYSICAL_CERT_ENABLED: ${PHYSICAL_CERT_ENABLED:-true}
+  PHYSICAL_CERT_PRICE_IRR: ${PHYSICAL_CERT_PRICE_IRR:-2500000}
+  PHYSICAL_CERT_WINDOW_DAYS: ${PHYSICAL_CERT_WINDOW_DAYS:-30}
+
+services:
+  postgres:
+    image: postgres:16.4-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:-pargar}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?POSTGRES_PASSWORD must be set}
+      POSTGRES_DB: ${POSTGRES_DB:-pargar}
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U \"$$POSTGRES_USER\" -d \"$$POSTGRES_DB\""]
+      interval: 5s
+      timeout: 3s
+      retries: 20
+    networks:
+      - pargar
+
+  redis:
+    image: redis@sha256:858f009f9709ce576febc734aa78b8f6d624b82571f9ddb6bda4377c833b3499
+    restart: unless-stopped
+    command: ["redis-server", "--requirepass", "${REDIS_PASSWORD:?REDIS_PASSWORD must be set}", "--appendonly", "yes"]
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "-a", "${REDIS_PASSWORD:?REDIS_PASSWORD must be set}", "ping"]
+      interval: 5s
+      timeout: 3s
+      retries: 20
+    networks:
+      - pargar
+
+  rustfs:
+    image: rustfs/rustfs@sha256:1803faef57627e2d9c2e7d89d655d712ddded5389040054987163043fecb6a3c
+    restart: unless-stopped
+    command: /data
+    environment:
+      RUSTFS_ACCESS_KEY: ${RUSTFS_ACCESS_KEY:?RUSTFS_ACCESS_KEY must be set}
+      RUSTFS_SECRET_KEY: ${RUSTFS_SECRET_KEY:?RUSTFS_SECRET_KEY must be set}
+      RUSTFS_ADDRESS: ":9000"
+      RUSTFS_CONSOLE_ADDRESS: ":9001"
+      RUSTFS_CONSOLE_ENABLE: ${RUSTFS_CONSOLE_ENABLE:-false}
+    volumes:
+      - rustfs_data:/data
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "--quiet", "http://localhost:9000/health"]
+      interval: 5s
+      timeout: 3s
+      retries: 20
+      start_period: 10s
+    networks:
+      - pargar
+
+  backend:
+    build:
+      context: ../../backend
+      dockerfile: Dockerfile
+    image: ${BACKEND_IMAGE:-pargar-backend:local}
+    restart: unless-stopped
+    environment:
+      <<: *backend-env
+      DEV_MODE: ${DEV_MODE:-false}
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+      rustfs:
+        condition: service_healthy
+    expose:
+      - "8080"
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "--quiet", "http://127.0.0.1:8080/api/health"]
+      interval: 5s
+      timeout: 3s
+      retries: 20
+    networks:
+      - pargar
+    labels:
+      - traefik.enable=true
+      - traefik.docker.network=pargar_pargar
+      # API + media (higher priority than frontend catch-all)
+      - traefik.http.routers.pargar-api.rule=Host(`${DOMAIN:-localhost}`) && (PathPrefix(`/api`) || PathPrefix(`/media`))
+      - traefik.http.routers.pargar-api.entrypoints=websecure
+      - traefik.http.routers.pargar-api.priority=100
+      - traefik.http.routers.pargar-api.tls=true
+      - traefik.http.routers.pargar-api.middlewares=security-headers@file,compress@file
+      - traefik.http.routers.pargar-api.service=pargar-api
+      - traefik.http.services.pargar-api.loadbalancer.server.port=8080
+      # Certificate public API — noindex
+      - traefik.http.routers.pargar-cert-api.rule=Host(`${DOMAIN:-localhost}`) && PathPrefix(`/api/certificates`)
+      - traefik.http.routers.pargar-cert-api.entrypoints=websecure
+      - traefik.http.routers.pargar-cert-api.priority=110
+      - traefik.http.routers.pargar-cert-api.tls=true
+      - traefik.http.routers.pargar-cert-api.middlewares=security-headers@file,compress@file,noindex@file
+      - traefik.http.routers.pargar-cert-api.service=pargar-api
+
+  frontend:
+    build:
+      context: ../../frontend
+      dockerfile: Dockerfile
+      args:
+        NEXT_PUBLIC_API_URL: ""
+        NEXT_PUBLIC_WS_URL: ""
+    image: ${FRONTEND_IMAGE:-pargar-frontend:local}
+    restart: unless-stopped
+    environment:
+      NODE_ENV: production
+    depends_on:
+      backend:
+        condition: service_healthy
+    expose:
+      - "3000"
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "--quiet", "http://127.0.0.1:3000"]
+      interval: 10s
+      timeout: 3s
+      retries: 10
+    networks:
+      - pargar
+    labels:
+      - traefik.enable=true
+      - traefik.docker.network=pargar_pargar
+      - traefik.http.routers.pargar-web.rule=Host(`${DOMAIN:-localhost}`)
+      - traefik.http.routers.pargar-web.entrypoints=websecure
+      - traefik.http.routers.pargar-web.priority=1
+      - traefik.http.routers.pargar-web.tls=true
+      - traefik.http.routers.pargar-web.middlewares=security-headers@file,compress@file
+      - traefik.http.routers.pargar-web.service=pargar-web
+      - traefik.http.services.pargar-web.loadbalancer.server.port=3000
+      # Unlisted certificate pages
+      - traefik.http.routers.pargar-cert-web.rule=Host(`${DOMAIN:-localhost}`) && PathPrefix(`/c`)
+      - traefik.http.routers.pargar-cert-web.entrypoints=websecure
+      - traefik.http.routers.pargar-cert-web.priority=50
+      - traefik.http.routers.pargar-cert-web.tls=true
+      - traefik.http.routers.pargar-cert-web.middlewares=security-headers@file,compress@file,noindex@file
+      - traefik.http.routers.pargar-cert-web.service=pargar-web
+
+networks:
+  pargar:
+    name: pargar_pargar
+
+volumes:
+  pgdata:
+  redis_data:
+  rustfs_data:

deploy/helm/pargar/.helmignore

@@ -0,0 +1,5 @@
+.DS_Store
+.git
+*.md
+*.tgz
+secrets*.yaml

deploy/helm/pargar/Chart.yaml

@@ -0,0 +1,15 @@
+apiVersion: v2
+name: pargar
+description: Pargar gated LMS - Go API, Next.js frontend, Postgres, Redis, S3-compatible storage
+type: application
+version: 0.2.1
+appVersion: "0.1.3"
+keywords:
+  - lms
+  - pargar
+  - traefik
+maintainers:
+  - name: Pargar
+home: https://github.com/example/pargar
+sources:
+  - https://github.com/example/pargar

deploy/helm/pargar/templates/NOTES.txt

@@ -0,0 +1,26 @@
+Pargar {{ .Chart.AppVersion }} installed as release "{{ .Release.Name }}" in namespace "{{ .Release.Namespace }}".
+
+Public URL:  {{ .Values.global.publicUrl }}
+Domain:      {{ .Values.global.domain }}
+
+1) Ensure DNS /hosts points to your Traefik entrypoint:
+     {{ .Values.global.domain }}  →  Traefik LoadBalancer / node IP
+
+2) Images must exist on the cluster nodes (k3s local):
+     docker compose -f deploy/compose/compose.yaml -f deploy/compose/compose.dev.yaml build
+     docker save pargar-backend:local pargar-frontend:local | sudo k3s ctr images import -
+
+3) Upgrade / install:
+     helm upgrade --install {{ .Release.Name }} ./deploy/helm/pargar \
+       -n {{ .Release.Namespace }} --create-namespace \
+       -f deploy/helm/pargar/values-k3s.yaml
+
+4) Health:
+     kubectl -n {{ .Release.Namespace }} get pods,ingressroute,svc
+     curl -k {{ .Values.global.publicUrl }}/api/health
+
+{{- if not .Values.ingress.tls.existingSecret }}
+
+TLS: chart-managed self-signed certificate (browser warning expected).
+For production set ingress.tls.existingSecret (cert-manager).
+{{- end }}

deploy/helm/pargar/templates/_helpers.tpl

@@ -0,0 +1,110 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "pargar.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{- define "pargar.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{- define "pargar.labels" -}}
+helm.sh/chart: {{ include "pargar.chart" . }}
+{{ include "pargar.selectorLabels" . }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{- define "pargar.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "pargar.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{- define "pargar.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "pargar.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.appSecretName" -}}
+{{- if .Values.backend.existingSecret }}
+{{- .Values.backend.existingSecret }}
+{{- else }}
+{{- printf "%s-app" (include "pargar.fullname" .) }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.postgresSecretName" -}}
+{{- if .Values.postgres.existingSecret }}
+{{- .Values.postgres.existingSecret }}
+{{- else }}
+{{- printf "%s-postgres" (include "pargar.fullname" .) }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.redisSecretName" -}}
+{{- if .Values.redis.existingSecret }}
+{{- .Values.redis.existingSecret }}
+{{- else }}
+{{- printf "%s-redis" (include "pargar.fullname" .) }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.rustfsSecretName" -}}
+{{- if .Values.rustfs.existingSecret }}
+{{- .Values.rustfs.existingSecret }}
+{{- else }}
+{{- printf "%s-rustfs" (include "pargar.fullname" .) }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.tlsSecretName" -}}
+{{- if .Values.ingress.tls.existingSecret }}
+{{- .Values.ingress.tls.existingSecret }}
+{{- else }}
+{{- printf "%s-tls" (include "pargar.fullname" .) }}
+{{- end }}
+{{- end }}
+
+{{- define "pargar.postgresHost" -}}
+{{- printf "%s-postgres" (include "pargar.fullname" .) }}
+{{- end }}
+
+{{- define "pargar.redisHost" -}}
+{{- printf "%s-redis" (include "pargar.fullname" .) }}
+{{- end }}
+
+{{- define "pargar.rustfsHost" -}}
+{{- printf "%s-rustfs" (include "pargar.fullname" .) }}
+{{- end }}
+
+{{/*
+Resolve container image: optional global.imageRegistry + repository:tag
+Usage: {{ include "pargar.image" (dict "root" . "image" .Values.backend.image) }}
+*/}}
+{{- define "pargar.image" -}}
+{{- $registry := .root.Values.global.imageRegistry | default "" -}}
+{{- $repo := .image.repository -}}
+{{- $tag := .image.tag | default .root.Chart.AppVersion | toString -}}
+{{- if $registry -}}
+{{- printf "%s/%s:%s" (trimSuffix "/" $registry) $repo $tag -}}
+{{- else -}}
+{{- printf "%s:%s" $repo $tag -}}
+{{- end -}}
+{{- end }}

deploy/helm/pargar/templates/backend.yaml

@@ -0,0 +1,206 @@
+{{- if .Values.backend.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "pargar.fullname" . }}-backend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  type: ClusterIP
+  ports:
+    - name: http
+      port: {{ .Values.backend.service.port }}
+      targetPort: http
+  selector:
+    {{- include "pargar.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "pargar.fullname" . }}-backend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  {{- if not .Values.backend.autoscaling.enabled }}
+  replicas: {{ .Values.backend.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: backend
+  template:
+    metadata:
+      labels:
+        {{- include "pargar.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: backend
+    spec:
+      serviceAccountName: {{ include "pargar.serviceAccountName" . }}
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: backend
+          image: {{ include "pargar.image" (dict "root" . "image" .Values.backend.image) | quote }}
+          imagePullPolicy: {{ .Values.backend.image.pullPolicy }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          ports:
+            - name: http
+              containerPort: {{ .Values.backend.service.port }}
+          env:
+            - name: PORT
+              value: {{ .Values.backend.service.port | quote }}
+            - name: PUBLIC_URL
+              value: {{ .Values.global.publicUrl | quote }}
+            - name: FRONTEND_ORIGINS
+              value: {{ .Values.global.frontendOrigins | quote }}
+            - name: TRUSTED_PROXY_CIDRS
+              value: {{ .Values.global.trustedProxyCIDRs | quote }}
+            - name: DEV_MODE
+              value: {{ .Values.backend.env.devMode | quote }}
+            - name: SEED_CURRICULUM
+              value: {{ .Values.backend.env.seedCurriculum | quote }}
+            - name: REGISTRATION_ENFORCE_IP
+              value: {{ .Values.backend.env.registrationEnforceIP | quote }}
+            - name: ADMIN_NAME
+              value: {{ .Values.backend.admin.name | quote }}
+            - name: ADMIN_USERNAME
+              value: {{ .Values.backend.admin.username | quote }}
+            - name: ADMIN_EMAIL
+              value: {{ .Values.backend.admin.email | quote }}
+            - name: JWT_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: jwt-secret
+            - name: ADMIN_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: admin-password
+            - name: METRICS_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: metrics-token
+                  optional: true
+            - name: DONATION_ENABLED
+              value: {{ .Values.backend.env.donationEnabled | quote }}
+            - name: PHYSICAL_CERT_ENABLED
+              value: {{ .Values.backend.env.physicalCertEnabled | quote }}
+            - name: PHYSICAL_CERT_PRICE_IRR
+              value: {{ .Values.backend.env.physicalCertPriceIrr | quote }}
+            - name: PHYSICAL_CERT_WINDOW_DAYS
+              value: {{ .Values.backend.env.physicalCertWindowDays | quote }}
+            - name: OTEL_EXPORTER_OTLP_ENDPOINT
+              value: {{ .Values.backend.env.otelEndpoint | quote }}
+            - name: OTEL_SERVICE_NAME
+              value: {{ .Values.backend.env.otelServiceName | quote }}
+            - name: STORAGE_DRIVER
+              value: s3
+            - name: STORAGE_REGION
+              value: {{ .Values.rustfs.region | quote }}
+            - name: STORAGE_BUCKET
+              value: {{ .Values.rustfs.bucket | quote }}
+            {{- if .Values.postgres.enabled }}
+            - name: POSTGRES_USER
+              value: {{ .Values.postgres.auth.username | quote }}
+            - name: POSTGRES_DB
+              value: {{ .Values.postgres.auth.database | quote }}
+            - name: POSTGRES_HOST
+              value: {{ include "pargar.postgresHost" . | quote }}
+            - name: POSTGRES_PORT
+              value: "5432"
+            - name: POSTGRES_SSLMODE
+              value: "disable"
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.postgresSecretName" . }}
+                  key: postgres-password
+            {{- else }}
+            - name: DATABASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: database-url
+            {{- end }}
+            {{- if .Values.redis.enabled }}
+            - name: REDIS_HOST
+              value: {{ include "pargar.redisHost" . | quote }}
+            - name: REDIS_PORT
+              value: "6379"
+            - name: REDIS_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.redisSecretName" . }}
+                  key: redis-password
+            {{- else }}
+            - name: REDIS_URL
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: redis-url
+            {{- end }}
+            {{- if .Values.rustfs.enabled }}
+            - name: STORAGE_ENDPOINT
+              value: {{ printf "http://%s:9000" (include "pargar.rustfsHost" .) | quote }}
+            - name: STORAGE_ACCESS_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.rustfsSecretName" . }}
+                  key: access-key
+            - name: STORAGE_SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.rustfsSecretName" . }}
+                  key: secret-key
+            {{- else }}
+            - name: STORAGE_ENDPOINT
+              value: {{ required "external.storageEndpoint required when rustfs.enabled=false" .Values.external.storageEndpoint | quote }}
+            - name: STORAGE_ACCESS_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: storage-access-key
+            - name: STORAGE_SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.appSecretName" . }}
+                  key: storage-secret-key
+            {{- end }}
+          readinessProbe:
+            httpGet:
+              path: /api/health
+              port: http
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: http
+            initialDelaySeconds: 15
+            periodSeconds: 10
+          {{- with .Values.backend.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+{{- end }}

deploy/helm/pargar/templates/backup-cronjob.yaml

@@ -0,0 +1,79 @@
+{{- if and .Values.postgres.enabled .Values.backup.enabled }}
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ include "pargar.fullname" . }}-backups
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backup
+spec:
+  accessModes: ["ReadWriteOnce"]
+  {{- if .Values.backup.persistence.storageClass }}
+  storageClassName: {{ .Values.backup.persistence.storageClass | quote }}
+  {{- end }}
+  resources:
+    requests:
+      storage: {{ .Values.backup.persistence.size | quote }}
+---
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ include "pargar.fullname" . }}-pg-backup
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backup
+spec:
+  schedule: {{ .Values.backup.schedule | quote }}
+  concurrencyPolicy: Forbid
+  successfulJobsHistoryLimit: 3
+  failedJobsHistoryLimit: 3
+  jobTemplate:
+    spec:
+      template:
+        metadata:
+          labels:
+            {{- include "pargar.selectorLabels" . | nindent 12 }}
+            app.kubernetes.io/component: backup
+        spec:
+          restartPolicy: OnFailure
+          securityContext:
+            fsGroup: 999
+          containers:
+            - name: pg-dump
+              image: {{ .Values.backup.image | quote }}
+              imagePullPolicy: IfNotPresent
+              env:
+                - name: PGHOST
+                  value: {{ include "pargar.postgresHost" . | quote }}
+                - name: PGPORT
+                  value: "5432"
+                - name: PGUSER
+                  value: {{ .Values.postgres.auth.username | quote }}
+                - name: PGDATABASE
+                  value: {{ .Values.postgres.auth.database | quote }}
+                - name: RETENTION_DAYS
+                  value: {{ .Values.backup.retentionDays | quote }}
+                - name: PGPASSWORD
+                  valueFrom:
+                    secretKeyRef:
+                      name: {{ include "pargar.postgresSecretName" . }}
+                      key: postgres-password
+              command:
+                - /bin/sh
+                - -ec
+                - |
+                  set -euo pipefail
+                  STAMP="$(date -u +%Y%m%dT%H%M%SZ)"
+                  OUT="/backups/pargar-${STAMP}.sql.gz"
+                  echo "Writing ${OUT}"
+                  pg_dump --no-owner --no-acl | gzip -c > "${OUT}"
+                  find /backups -type f -name 'pargar-*.sql.gz' -mtime +"${RETENTION_DAYS}" -print -delete || true
+                  ls -lh /backups || true
+              volumeMounts:
+                - name: backups
+                  mountPath: /backups
+          volumes:
+            - name: backups
+              persistentVolumeClaim:
+                claimName: {{ include "pargar.fullname" . }}-backups
+{{- end }}

deploy/helm/pargar/templates/certificate.yaml

@@ -0,0 +1,23 @@
+{{- if and .Values.ingress.enabled .Values.ingress.tls.enabled .Values.certManager.enabled }}
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: {{ include "pargar.fullname" . }}-tls
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  secretName: {{ include "pargar.tlsSecretName" . }}
+  duration: {{ .Values.certManager.duration | default "2160h" | quote }}
+  renewBefore: {{ .Values.certManager.renewBefore | default "360h" | quote }}
+  issuerRef:
+    name: {{ required "certManager.issuerRef.name required when certManager.enabled" .Values.certManager.issuerRef.name | quote }}
+    kind: {{ .Values.certManager.issuerRef.kind | default "ClusterIssuer" | quote }}
+    {{- if .Values.certManager.issuerRef.group }}
+    group: {{ .Values.certManager.issuerRef.group | quote }}
+    {{- end }}
+  dnsNames:
+    - {{ .Values.global.domain | quote }}
+    {{- range .Values.certManager.extraDnsNames }}
+    - {{ . | quote }}
+    {{- end }}
+{{- end }}

deploy/helm/pargar/templates/frontend.yaml

@@ -0,0 +1,83 @@
+{{- if .Values.frontend.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "pargar.fullname" . }}-frontend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  type: ClusterIP
+  ports:
+    - name: http
+      port: {{ .Values.frontend.service.port }}
+      targetPort: http
+  selector:
+    {{- include "pargar.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "pargar.fullname" . }}-frontend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  {{- if not .Values.frontend.autoscaling.enabled }}
+  replicas: {{ .Values.frontend.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: frontend
+  template:
+    metadata:
+      labels:
+        {{- include "pargar.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: frontend
+    spec:
+      serviceAccountName: {{ include "pargar.serviceAccountName" . }}
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - name: frontend
+          image: {{ include "pargar.image" (dict "root" . "image" .Values.frontend.image) | quote }}
+          imagePullPolicy: {{ .Values.frontend.image.pullPolicy }}
+          env:
+            - name: NODE_ENV
+              value: production
+          ports:
+            - name: http
+              containerPort: {{ .Values.frontend.service.port }}
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+            initialDelaySeconds: 15
+            periodSeconds: 10
+          {{- with .Values.frontend.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+{{- end }}

deploy/helm/pargar/templates/hpa.yaml

@@ -0,0 +1,67 @@
+{{- if and .Values.backend.enabled .Values.backend.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "pargar.fullname" . }}-backend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "pargar.fullname" . }}-backend
+  minReplicas: {{ .Values.backend.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.backend.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.backend.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.backend.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.backend.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.backend.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+---
+{{- end }}
+{{- if and .Values.frontend.enabled .Values.frontend.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "pargar.fullname" . }}-frontend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "pargar.fullname" . }}-frontend
+  minReplicas: {{ .Values.frontend.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.frontend.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.frontend.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.frontend.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.frontend.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.frontend.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

deploy/helm/pargar/templates/ingress.yaml

@@ -0,0 +1,50 @@
+{{- if and .Values.ingress.enabled (not .Values.ingress.useIngressRoute) }}
+{{- $fullName := include "pargar.fullname" . }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+  annotations:
+    traefik.ingress.kubernetes.io/router.middlewares: {{ .Release.Namespace }}-{{ $fullName }}-security-headers@kubernetescrd,{{ .Release.Namespace }}-{{ $fullName }}-compress@kubernetescrd
+    {{- if .Values.ingress.tls.clusterIssuer }}
+    cert-manager.io/cluster-issuer: {{ .Values.ingress.tls.clusterIssuer | quote }}
+    {{- end }}
+    {{- with .Values.ingress.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  ingressClassName: {{ .Values.ingress.className | quote }}
+  {{- if .Values.ingress.tls.enabled }}
+  tls:
+    - hosts:
+        - {{ .Values.global.domain | quote }}
+      secretName: {{ include "pargar.tlsSecretName" . }}
+  {{- end }}
+  rules:
+    - host: {{ .Values.global.domain | quote }}
+      http:
+        paths:
+          - path: /api
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ $fullName }}-backend
+                port:
+                  number: {{ .Values.backend.service.port }}
+          - path: /media
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ $fullName }}-backend
+                port:
+                  number: {{ .Values.backend.service.port }}
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ $fullName }}-frontend
+                port:
+                  number: {{ .Values.frontend.service.port }}
+{{- end }}

deploy/helm/pargar/templates/ingressroute.yaml

@@ -0,0 +1,97 @@
+{{- if and .Values.ingress.enabled .Values.ingress.useIngressRoute }}
+{{- $fullName := include "pargar.fullname" . }}
+{{- $domain := .Values.global.domain }}
+{{- $tlsSecret := include "pargar.tlsSecretName" . }}
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: {{ $fullName }}-http
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  entryPoints:
+    - web
+  routes:
+    - match: Host(`{{ $domain }}`)
+      kind: Rule
+      {{- if .Values.middlewares.redirectHttps }}
+      middlewares:
+        - name: {{ $fullName }}-redirect-https
+      {{- end }}
+      services:
+        - name: {{ $fullName }}-frontend
+          port: {{ .Values.frontend.service.port }}
+---
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: {{ $fullName }}-https
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  entryPoints:
+    - websecure
+  routes:
+    # Certificate public API — highest priority + noindex
+    - match: Host(`{{ $domain }}`) && PathPrefix(`/api/certificates`)
+      kind: Rule
+      priority: 110
+      middlewares:
+        {{- if .Values.middlewares.securityHeaders }}
+        - name: {{ $fullName }}-security-headers
+        {{- end }}
+        {{- if .Values.middlewares.compress }}
+        - name: {{ $fullName }}-compress
+        {{- end }}
+        - name: {{ $fullName }}-noindex
+      services:
+        - name: {{ $fullName }}-backend
+          port: {{ .Values.backend.service.port }}
+    # API + media (+ WebSocket /api/ws)
+    - match: Host(`{{ $domain }}`) && (PathPrefix(`/api`) || PathPrefix(`/media`))
+      kind: Rule
+      priority: 100
+      middlewares:
+        {{- if .Values.middlewares.securityHeaders }}
+        - name: {{ $fullName }}-security-headers
+        {{- end }}
+        {{- if .Values.middlewares.compress }}
+        - name: {{ $fullName }}-compress
+        {{- end }}
+      services:
+        - name: {{ $fullName }}-backend
+          port: {{ .Values.backend.service.port }}
+    # Unlisted certificate pages
+    - match: Host(`{{ $domain }}`) && PathPrefix(`/c`)
+      kind: Rule
+      priority: 50
+      middlewares:
+        {{- if .Values.middlewares.securityHeaders }}
+        - name: {{ $fullName }}-security-headers
+        {{- end }}
+        {{- if .Values.middlewares.compress }}
+        - name: {{ $fullName }}-compress
+        {{- end }}
+        - name: {{ $fullName }}-noindex
+      services:
+        - name: {{ $fullName }}-frontend
+          port: {{ .Values.frontend.service.port }}
+    # Frontend catch-all
+    - match: Host(`{{ $domain }}`)
+      kind: Rule
+      priority: 1
+      middlewares:
+        {{- if .Values.middlewares.securityHeaders }}
+        - name: {{ $fullName }}-security-headers
+        {{- end }}
+        {{- if .Values.middlewares.compress }}
+        - name: {{ $fullName }}-compress
+        {{- end }}
+      services:
+        - name: {{ $fullName }}-frontend
+          port: {{ .Values.frontend.service.port }}
+  {{- if .Values.ingress.tls.enabled }}
+  tls:
+    secretName: {{ $tlsSecret }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/templates/middlewares.yaml

@@ -0,0 +1,63 @@
+{{- if .Values.ingress.enabled }}
+{{- if .Values.middlewares.securityHeaders }}
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: {{ include "pargar.fullname" . }}-security-headers
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  headers:
+    stsSeconds: 31536000
+    stsIncludeSubdomains: true
+    contentTypeNosniff: true
+    browserXssFilter: true
+    frameDeny: true
+    referrerPolicy: strict-origin-when-cross-origin
+    permissionsPolicy: "camera=(), microphone=(), geolocation=()"
+    customResponseHeaders:
+      Server: ""
+      Content-Security-Policy: >-
+        default-src 'self'; base-uri 'self'; form-action 'self';
+        frame-ancestors 'none'; object-src 'none';
+        script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline';
+        img-src 'self' data: blob:; font-src 'self' data:;
+        media-src 'self' blob:; connect-src 'self' ws: wss:;
+        worker-src 'self' blob:
+---
+{{- end }}
+{{- if .Values.middlewares.compress }}
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: {{ include "pargar.fullname" . }}-compress
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  compress: {}
+---
+{{- end }}
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: {{ include "pargar.fullname" . }}-noindex
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  headers:
+    customResponseHeaders:
+      X-Robots-Tag: "noindex, nofollow, noarchive"
+---
+{{- if and .Values.ingress.useIngressRoute .Values.middlewares.redirectHttps }}
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: {{ include "pargar.fullname" . }}-redirect-https
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  redirectScheme:
+    scheme: https
+    permanent: true
+{{- end }}
+{{- end }}

deploy/helm/pargar/templates/networkpolicy.yaml

@@ -0,0 +1,229 @@
+{{- if .Values.networkPolicy.enabled }}
+{{- $fullName := include "pargar.fullname" . }}
+# Default deny all ingress/egress in the release namespace, then allow required paths.
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ $fullName }}-default-deny
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+spec:
+  podSelector: {}
+  policyTypes:
+    - Ingress
+    - Egress
+---
+{{- if .Values.backend.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ $fullName }}-backend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: backend
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+    - from:
+        {{- range .Values.networkPolicy.ingressNamespaces }}
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: {{ . | quote }}
+          podSelector:
+            matchLabels:
+              {{- toYaml $.Values.networkPolicy.ingressPodLabels | nindent 14 }}
+        {{- end }}
+      ports:
+        - protocol: TCP
+          port: {{ .Values.backend.service.port }}
+  egress:
+    # DNS
+    - to:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: kube-system
+      ports:
+        - protocol: UDP
+          port: 53
+        - protocol: TCP
+          port: 53
+    {{- if .Values.postgres.enabled }}
+    - to:
+        - podSelector:
+            matchLabels:
+              {{- include "pargar.selectorLabels" . | nindent 14 }}
+              app.kubernetes.io/component: postgres
+      ports:
+        - protocol: TCP
+          port: 5432
+    {{- end }}
+    {{- if .Values.redis.enabled }}
+    - to:
+        - podSelector:
+            matchLabels:
+              {{- include "pargar.selectorLabels" . | nindent 14 }}
+              app.kubernetes.io/component: redis
+      ports:
+        - protocol: TCP
+          port: 6379
+    {{- end }}
+    {{- if .Values.rustfs.enabled }}
+    - to:
+        - podSelector:
+            matchLabels:
+              {{- include "pargar.selectorLabels" . | nindent 14 }}
+              app.kubernetes.io/component: rustfs
+      ports:
+        - protocol: TCP
+          port: 9000
+    {{- else }}
+    # External S3 / managed data when in-cluster rustfs is off
+    - to:
+        - ipBlock:
+            cidr: 0.0.0.0/0
+            except:
+              - 10.0.0.0/8
+              - 172.16.0.0/12
+              - 192.168.0.0/16
+              - 169.254.0.0/16
+      ports:
+        - protocol: TCP
+          port: 443
+        - protocol: TCP
+          port: 5432
+        - protocol: TCP
+          port: 6379
+    {{- end }}
+---
+{{- end }}
+{{- if .Values.frontend.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ $fullName }}-frontend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: frontend
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+    - from:
+        {{- range .Values.networkPolicy.ingressNamespaces }}
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: {{ . | quote }}
+          podSelector:
+            matchLabels:
+              {{- toYaml $.Values.networkPolicy.ingressPodLabels | nindent 14 }}
+        {{- end }}
+      ports:
+        - protocol: TCP
+          port: {{ .Values.frontend.service.port }}
+  egress:
+    - to:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: kube-system
+      ports:
+        - protocol: UDP
+          port: 53
+        - protocol: TCP
+          port: 53
+---
+{{- end }}
+{{- if .Values.postgres.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ $fullName }}-postgres
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: postgres
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              {{- include "pargar.selectorLabels" . | nindent 14 }}
+              app.kubernetes.io/component: backend
+      ports:
+        - protocol: TCP
+          port: 5432
+  egress: []
+---
+{{- end }}
+{{- if .Values.redis.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ $fullName }}-redis
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: redis
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: redis
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              {{- include "pargar.selectorLabels" . | nindent 14 }}
+              app.kubernetes.io/component: backend
+      ports:
+        - protocol: TCP
+          port: 6379
+  egress: []
+---
+{{- end }}
+{{- if .Values.rustfs.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ $fullName }}-rustfs
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: rustfs
+spec:
+  podSelector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: rustfs
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              {{- include "pargar.selectorLabels" . | nindent 14 }}
+              app.kubernetes.io/component: backend
+      ports:
+        - protocol: TCP
+          port: 9000
+  egress: []
+{{- end }}
+{{- end }}

deploy/helm/pargar/templates/pdb.yaml

@@ -0,0 +1,41 @@
+{{- if and .Values.backend.enabled .Values.backend.podDisruptionBudget.enabled }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "pargar.fullname" . }}-backend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: backend
+spec:
+  {{- if .Values.backend.podDisruptionBudget.minAvailable }}
+  minAvailable: {{ .Values.backend.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if .Values.backend.podDisruptionBudget.maxUnavailable }}
+  maxUnavailable: {{ .Values.backend.podDisruptionBudget.maxUnavailable }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: backend
+---
+{{- end }}
+{{- if and .Values.frontend.enabled .Values.frontend.podDisruptionBudget.enabled }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "pargar.fullname" . }}-frontend
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: frontend
+spec:
+  {{- if .Values.frontend.podDisruptionBudget.minAvailable }}
+  minAvailable: {{ .Values.frontend.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if .Values.frontend.podDisruptionBudget.maxUnavailable }}
+  maxUnavailable: {{ .Values.frontend.podDisruptionBudget.maxUnavailable }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: frontend
+{{- end }}

deploy/helm/pargar/templates/postgres.yaml

@@ -0,0 +1,93 @@
+{{- if .Values.postgres.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "pargar.postgresHost" . }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+spec:
+  type: ClusterIP
+  ports:
+    - name: postgres
+      port: 5432
+      targetPort: postgres
+  selector:
+    {{- include "pargar.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "pargar.fullname" . }}-postgres
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+spec:
+  serviceName: {{ include "pargar.postgresHost" . }}
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: postgres
+  template:
+    metadata:
+      labels:
+        {{- include "pargar.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: postgres
+    spec:
+      containers:
+        - name: postgres
+          image: {{ .Values.postgres.image }}
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: postgres
+              containerPort: 5432
+          env:
+            - name: POSTGRES_USER
+              value: {{ .Values.postgres.auth.username | quote }}
+            - name: POSTGRES_DB
+              value: {{ .Values.postgres.auth.database | quote }}
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.postgresSecretName" . }}
+                  key: postgres-password
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata
+          readinessProbe:
+            exec:
+              command: ["pg_isready", "-U", {{ .Values.postgres.auth.username | quote }}, "-d", {{ .Values.postgres.auth.database | quote }}]
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          livenessProbe:
+            exec:
+              command: ["pg_isready", "-U", {{ .Values.postgres.auth.username | quote }}, "-d", {{ .Values.postgres.auth.database | quote }}]
+            initialDelaySeconds: 15
+            periodSeconds: 10
+          {{- with .Values.postgres.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/postgresql/data
+      {{- if not .Values.postgres.persistence.enabled }}
+      volumes:
+        - name: data
+          emptyDir: {}
+      {{- end }}
+  {{- if .Values.postgres.persistence.enabled }}
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        {{- if .Values.postgres.persistence.storageClass }}
+        storageClassName: {{ .Values.postgres.persistence.storageClass | quote }}
+        {{- end }}
+        resources:
+          requests:
+            storage: {{ .Values.postgres.persistence.size }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/templates/redis.yaml

@@ -0,0 +1,88 @@
+{{- if .Values.redis.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "pargar.redisHost" . }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: redis
+spec:
+  type: ClusterIP
+  ports:
+    - name: redis
+      port: 6379
+      targetPort: redis
+  selector:
+    {{- include "pargar.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: redis
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "pargar.fullname" . }}-redis
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: redis
+spec:
+  serviceName: {{ include "pargar.redisHost" . }}
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: redis
+  template:
+    metadata:
+      labels:
+        {{- include "pargar.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: redis
+    spec:
+      containers:
+        - name: redis
+          image: {{ .Values.redis.image }}
+          imagePullPolicy: IfNotPresent
+          command: ["sh", "-c", "exec redis-server --requirepass \"$REDIS_PASSWORD\" --appendonly yes"]
+          ports:
+            - name: redis
+              containerPort: 6379
+          env:
+            - name: REDIS_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.redisSecretName" . }}
+                  key: redis-password
+          readinessProbe:
+            exec:
+              command: ["sh", "-c", "redis-cli -a \"$REDIS_PASSWORD\" ping | grep -q PONG"]
+            initialDelaySeconds: 5
+            periodSeconds: 5
+          livenessProbe:
+            exec:
+              command: ["sh", "-c", "redis-cli -a \"$REDIS_PASSWORD\" ping | grep -q PONG"]
+            initialDelaySeconds: 15
+            periodSeconds: 10
+          {{- with .Values.redis.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          volumeMounts:
+            - name: data
+              mountPath: /data
+      {{- if not .Values.redis.persistence.enabled }}
+      volumes:
+        - name: data
+          emptyDir: {}
+      {{- end }}
+  {{- if .Values.redis.persistence.enabled }}
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        {{- if .Values.redis.persistence.storageClass }}
+        storageClassName: {{ .Values.redis.persistence.storageClass | quote }}
+        {{- end }}
+        resources:
+          requests:
+            storage: {{ .Values.redis.persistence.size }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/templates/rustfs.yaml

@@ -0,0 +1,101 @@
+{{- if .Values.rustfs.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "pargar.rustfsHost" . }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: rustfs
+spec:
+  type: ClusterIP
+  ports:
+    - name: s3
+      port: 9000
+      targetPort: s3
+  selector:
+    {{- include "pargar.selectorLabels" . | nindent 4 }}
+    app.kubernetes.io/component: rustfs
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "pargar.fullname" . }}-rustfs
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+    app.kubernetes.io/component: rustfs
+spec:
+  serviceName: {{ include "pargar.rustfsHost" . }}
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "pargar.selectorLabels" . | nindent 6 }}
+      app.kubernetes.io/component: rustfs
+  template:
+    metadata:
+      labels:
+        {{- include "pargar.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: rustfs
+    spec:
+      containers:
+        - name: rustfs
+          image: {{ .Values.rustfs.image }}
+          imagePullPolicy: IfNotPresent
+          args: ["/data"]
+          ports:
+            - name: s3
+              containerPort: 9000
+          env:
+            - name: RUSTFS_ACCESS_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.rustfsSecretName" . }}
+                  key: access-key
+            - name: RUSTFS_SECRET_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "pargar.rustfsSecretName" . }}
+                  key: secret-key
+            - name: RUSTFS_ADDRESS
+              value: ":9000"
+            - name: RUSTFS_CONSOLE_ADDRESS
+              value: ":9001"
+            - name: RUSTFS_CONSOLE_ENABLE
+              value: {{ .Values.rustfs.consoleEnable | ternary "true" "false" | quote }}
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: s3
+            initialDelaySeconds: 10
+            periodSeconds: 5
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: s3
+            initialDelaySeconds: 20
+            periodSeconds: 10
+          {{- with .Values.rustfs.resources }}
+          resources:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          volumeMounts:
+            - name: data
+              mountPath: /data
+      {{- if not .Values.rustfs.persistence.enabled }}
+      volumes:
+        - name: data
+          emptyDir: {}
+      {{- end }}
+  {{- if .Values.rustfs.persistence.enabled }}
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes: ["ReadWriteOnce"]
+        {{- if .Values.rustfs.persistence.storageClass }}
+        storageClassName: {{ .Values.rustfs.persistence.storageClass | quote }}
+        {{- end }}
+        resources:
+          requests:
+            storage: {{ .Values.rustfs.persistence.size }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/templates/secret-app.yaml

@@ -0,0 +1,56 @@
+{{- if and .Values.backend.enabled (not .Values.backend.existingSecret) }}
+{{- $name := include "pargar.appSecretName" . }}
+{{- $existing := lookup "v1" "Secret" .Release.Namespace $name }}
+{{- $jwt := "" }}
+{{- $admin := "" }}
+{{- $metrics := .Values.backend.secrets.metricsToken | default "" }}
+{{- if and $existing $existing.data }}
+  {{- /* Reuse existing secrets so upgrades do not invalidate sessions / bootstrap. */}}
+  {{- if index $existing.data "jwt-secret" }}
+    {{- $jwt = index $existing.data "jwt-secret" | b64dec }}
+  {{- end }}
+  {{- if index $existing.data "admin-password" }}
+    {{- $admin = index $existing.data "admin-password" | b64dec }}
+  {{- end }}
+  {{- if and (not $metrics) (index $existing.data "metrics-token") }}
+    {{- $metrics = index $existing.data "metrics-token" | b64dec }}
+  {{- end }}
+{{- end }}
+{{- if not $jwt }}
+  {{- if and .Values.backend.secrets.jwtSecret (not (hasPrefix "change-me" .Values.backend.secrets.jwtSecret)) (ne .Values.backend.secrets.jwtSecret "") }}
+    {{- $jwt = .Values.backend.secrets.jwtSecret }}
+  {{- else }}
+    {{- $jwt = randAlphaNum 48 }}
+  {{- end }}
+{{- end }}
+{{- if not $admin }}
+  {{- if and .Values.backend.secrets.adminPassword (not (hasPrefix "change-me" .Values.backend.secrets.adminPassword)) (ne .Values.backend.secrets.adminPassword "") }}
+    {{- $admin = .Values.backend.secrets.adminPassword }}
+  {{- else }}
+    {{- $admin = randAlphaNum 24 }}
+  {{- end }}
+{{- end }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $name }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+  annotations:
+    pargar.io/secret-source: generated-or-values
+type: Opaque
+stringData:
+  jwt-secret: {{ $jwt | quote }}
+  admin-password: {{ $admin | quote }}
+  metrics-token: {{ $metrics | quote }}
+  {{- if not .Values.postgres.enabled }}
+  database-url: {{ required "external.databaseUrl required when postgres.enabled=false and existingSecret is empty" .Values.external.databaseUrl | quote }}
+  {{- end }}
+  {{- if not .Values.redis.enabled }}
+  redis-url: {{ required "external.redisUrl required when redis.enabled=false and existingSecret is empty" .Values.external.redisUrl | quote }}
+  {{- end }}
+  {{- if not .Values.rustfs.enabled }}
+  storage-access-key: {{ required "external.storageAccessKey required when rustfs.enabled=false and existingSecret is empty" .Values.external.storageAccessKey | quote }}
+  storage-secret-key: {{ required "external.storageSecretKey required when rustfs.enabled=false and existingSecret is empty" .Values.external.storageSecretKey | quote }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/templates/secret-data.yaml

@@ -0,0 +1,71 @@
+{{- if and .Values.postgres.enabled (not .Values.postgres.existingSecret) }}
+{{- $pgName := include "pargar.postgresSecretName" . }}
+{{- $pgExisting := lookup "v1" "Secret" .Release.Namespace $pgName }}
+{{- $pgPass := "" }}
+{{- if and $pgExisting $pgExisting.data (index $pgExisting.data "postgres-password") }}
+  {{- /* Never rotate an existing DB password — Postgres data dir is bound to it. */}}
+  {{- $pgPass = index $pgExisting.data "postgres-password" | b64dec }}
+{{- else if and .Values.postgres.auth.password (not (hasPrefix "change-me" .Values.postgres.auth.password)) (ne .Values.postgres.auth.password "") }}
+  {{- $pgPass = .Values.postgres.auth.password }}
+{{- else }}
+  {{- $pgPass = randAlphaNum 32 }}
+{{- end }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $pgName }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+type: Opaque
+stringData:
+  postgres-password: {{ $pgPass | quote }}
+---
+{{- end }}
+{{- if and .Values.redis.enabled (not .Values.redis.existingSecret) }}
+{{- $rdName := include "pargar.redisSecretName" . }}
+{{- $rdExisting := lookup "v1" "Secret" .Release.Namespace $rdName }}
+{{- $rdPass := "" }}
+{{- if and $rdExisting $rdExisting.data (index $rdExisting.data "redis-password") }}
+  {{- $rdPass = index $rdExisting.data "redis-password" | b64dec }}
+{{- else if and .Values.redis.auth.password (not (hasPrefix "change-me" .Values.redis.auth.password)) (ne .Values.redis.auth.password "") }}
+  {{- $rdPass = .Values.redis.auth.password }}
+{{- else }}
+  {{- $rdPass = randAlphaNum 32 }}
+{{- end }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $rdName }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+type: Opaque
+stringData:
+  redis-password: {{ $rdPass | quote }}
+---
+{{- end }}
+{{- if and .Values.rustfs.enabled (not .Values.rustfs.existingSecret) }}
+{{- $rsName := include "pargar.rustfsSecretName" . }}
+{{- $rsExisting := lookup "v1" "Secret" .Release.Namespace $rsName }}
+{{- $access := .Values.rustfs.auth.accessKey | default "pargar" }}
+{{- $secret := "" }}
+{{- if and $rsExisting $rsExisting.data (index $rsExisting.data "secret-key") }}
+  {{- $secret = index $rsExisting.data "secret-key" | b64dec }}
+  {{- if index $rsExisting.data "access-key" }}
+    {{- $access = index $rsExisting.data "access-key" | b64dec }}
+  {{- end }}
+{{- else if and .Values.rustfs.auth.secretKey (not (hasPrefix "change-me" .Values.rustfs.auth.secretKey)) (ne .Values.rustfs.auth.secretKey "") }}
+  {{- $secret = .Values.rustfs.auth.secretKey }}
+{{- else }}
+  {{- $secret = randAlphaNum 40 }}
+{{- end }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $rsName }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+type: Opaque
+stringData:
+  access-key: {{ $access | quote }}
+  secret-key: {{ $secret | quote }}
+{{- end }}

deploy/helm/pargar/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "pargar.serviceAccountName" . }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/templates/tls-secret.yaml

@@ -0,0 +1,21 @@
+{{- if and .Values.ingress.enabled .Values.ingress.tls.enabled (not .Values.ingress.tls.existingSecret) (not .Values.certManager.enabled) }}
+{{- $secretName := include "pargar.tlsSecretName" . }}
+{{- $existing := lookup "v1" "Secret" .Release.Namespace $secretName }}
+{{- $cn := .Values.global.domain }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $secretName }}
+  labels:
+    {{- include "pargar.labels" . | nindent 4 }}
+type: kubernetes.tls
+data:
+  {{- if $existing }}
+  tls.crt: {{ index $existing.data "tls.crt" }}
+  tls.key: {{ index $existing.data "tls.key" }}
+  {{- else }}
+  {{- $cert := genSelfSignedCert $cn nil (list $cn) 3650 }}
+  tls.crt: {{ $cert.Cert | b64enc }}
+  tls.key: {{ $cert.Key | b64enc }}
+  {{- end }}
+{{- end }}

deploy/helm/pargar/values-k3s.yaml

@@ -0,0 +1,55 @@
+# Local k3s profile — self-signed TLS, in-cluster data, single replicas.
+#   helm upgrade --install pargar ./deploy/helm/pargar -n pargar --create-namespace -f deploy/helm/pargar/values-k3s.yaml
+#
+# After install, add to /etc/hosts:  <NODE_IP>  pargar.local
+
+global:
+  domain: pargar.local
+  publicUrl: https://pargar.local
+  frontendOrigins: "https://pargar.local"
+
+backend:
+  replicaCount: 1
+  image:
+    repository: pargar-backend
+    tag: local
+    pullPolicy: IfNotPresent
+  env:
+    seedCurriculum: "true"
+
+frontend:
+  replicaCount: 1
+  image:
+    repository: pargar-frontend
+    tag: local
+    pullPolicy: IfNotPresent
+
+postgres:
+  enabled: true
+  persistence:
+    size: 5Gi
+
+redis:
+  enabled: true
+  persistence:
+    size: 1Gi
+
+rustfs:
+  enabled: true
+  persistence:
+    size: 10Gi
+  consoleEnable: false
+
+backup:
+  enabled: true
+  schedule: "0 3 * * *"
+  retentionDays: 7
+  persistence:
+    size: 2Gi
+
+ingress:
+  enabled: true
+  useIngressRoute: true
+  tls:
+    enabled: true
+    existingSecret: "" # chart generates self-signed for pargar.local

deploy/helm/pargar/values-prod.yaml

@@ -0,0 +1,103 @@
+# Production profile — external data plane, registry images, HPA/PDB/NetworkPolicy, cert-manager.
+#   helm upgrade --install pargar ./deploy/helm/pargar -n pargar --create-namespace \
+#     -f deploy/helm/pargar/values-prod.yaml
+#
+# Prerequisites:
+#   - images pushed to ghcr.io/pargar/{backend,frontend}:<tag>
+#   - Secret pargar-app (jwt-secret, admin-password, metrics-token, database-url, redis-url,
+#     storage-access-key, storage-secret-key)
+#   - cert-manager ClusterIssuer letsencrypt-prod
+#   - imagePullSecrets if the registry is private
+
+global:
+  domain: app.example.com
+  publicUrl: https://app.example.com
+  frontendOrigins: "https://app.example.com"
+  imageRegistry: ghcr.io/pargar
+
+imagePullSecrets:
+  - name: ghcr-pull
+
+backend:
+  replicaCount: 2
+  image:
+    repository: backend
+    tag: "0.1.3"
+    pullPolicy: IfNotPresent
+  existingSecret: pargar-app
+  env:
+    devMode: "false"
+    seedCurriculum: "false"
+  resources:
+    requests:
+      cpu: 100m
+      memory: 256Mi
+    limits:
+      cpu: "2"
+      memory: 1Gi
+  autoscaling:
+    enabled: true
+    minReplicas: 2
+    maxReplicas: 8
+    targetCPUUtilizationPercentage: 70
+    targetMemoryUtilizationPercentage: 80
+  podDisruptionBudget:
+    enabled: true
+    minAvailable: 1
+
+frontend:
+  replicaCount: 2
+  image:
+    repository: frontend
+    tag: "0.1.3"
+    pullPolicy: IfNotPresent
+  resources:
+    requests:
+      cpu: 100m
+      memory: 256Mi
+    limits:
+      cpu: "2"
+      memory: 1Gi
+  autoscaling:
+    enabled: true
+    minReplicas: 2
+    maxReplicas: 8
+    targetCPUUtilizationPercentage: 70
+    targetMemoryUtilizationPercentage: 80
+  podDisruptionBudget:
+    enabled: true
+    minAvailable: 1
+
+# Prefer managed Postgres / Redis / object storage in real prod.
+postgres:
+  enabled: false
+redis:
+  enabled: false
+rustfs:
+  enabled: false
+
+external:
+  databaseUrl: "" # prefer secret key database-url on pargar-app
+  redisUrl: ""
+  storageEndpoint: "https://s3.example.com"
+
+ingress:
+  enabled: true
+  useIngressRoute: true
+  tls:
+    enabled: true
+    existingSecret: "" # Certificate CR owns the secret below
+    clusterIssuer: letsencrypt-prod
+
+certManager:
+  enabled: true
+  issuerRef:
+    name: letsencrypt-prod
+    kind: ClusterIssuer
+
+networkPolicy:
+  enabled: true
+  ingressNamespaces:
+    - kube-system
+  ingressPodLabels:
+    app.kubernetes.io/name: traefik

deploy/helm/pargar/values.yaml

@@ -0,0 +1,231 @@
+# Default values — safe for local k3s. Override with values-k3s.yaml / values-prod.yaml.
+
+nameOverride: ""
+fullnameOverride: ""
+
+global:
+  # Public hostname (Ingress / TLS / PUBLIC_URL)
+  domain: pargar.local
+  # Full public origin browsers use (must match Ingress TLS host)
+  publicUrl: https://pargar.local
+  frontendOrigins: "https://pargar.local"
+  # Docker/k8s pod+service CIDRs — Traefik peer is trusted for X-Forwarded-*
+  trustedProxyCIDRs: "10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,127.0.0.0/8,::1/128"
+  # Optional registry prefix, e.g. ghcr.io/pargar → images become ghcr.io/pargar/<repository>:<tag>
+  imageRegistry: ""
+
+imagePullSecrets: []
+
+backend:
+  enabled: true
+  replicaCount: 1
+  image:
+    repository: pargar-backend
+    tag: local
+    pullPolicy: IfNotPresent
+  service:
+    port: 8080
+  resources:
+    requests:
+      cpu: 50m
+      memory: 128Mi
+    limits:
+      cpu: "1"
+      memory: 512Mi
+  autoscaling:
+    enabled: false
+    minReplicas: 2
+    maxReplicas: 6
+    targetCPUUtilizationPercentage: 70
+    targetMemoryUtilizationPercentage: 80
+  podDisruptionBudget:
+    enabled: false
+    minAvailable: 1
+  env:
+    devMode: "false"
+    seedCurriculum: "false"
+    # false behind NAT / shared egress (peer IP is not a real client).
+    registrationEnforceIP: "false"
+    donationEnabled: "true"
+    # Offline payment only — leave off until ops process is ready; enable in admin settings.
+    physicalCertEnabled: "false"
+    physicalCertPriceIrr: "2500000"
+    physicalCertWindowDays: "30"
+    otelEndpoint: ""
+    otelServiceName: pargar-api
+  # Created only when admin user is missing (see seed.ensureBootstrapAdmin)
+  admin:
+    name: Admin
+    username: admin
+    email: admin@example.com
+  # Prefer existingSecret in production. When empty, chart generate-once (lookup + rand).
+  existingSecret: ""
+  # Optional overrides; leave empty to auto-generate strong values (placeholders like change-me-* are ignored).
+  secrets:
+    jwtSecret: ""
+    adminPassword: ""
+    metricsToken: ""
+
+frontend:
+  enabled: true
+  replicaCount: 1
+  image:
+    repository: pargar-frontend
+    tag: local
+    pullPolicy: IfNotPresent
+  service:
+    port: 3000
+  resources:
+    requests:
+      cpu: 50m
+      memory: 128Mi
+    limits:
+      cpu: "1"
+      memory: 512Mi
+  autoscaling:
+    enabled: false
+    minReplicas: 2
+    maxReplicas: 6
+    targetCPUUtilizationPercentage: 70
+    targetMemoryUtilizationPercentage: 80
+  podDisruptionBudget:
+    enabled: false
+    minAvailable: 1
+
+# In-cluster data plane (k3s / small clusters). Disable and point to managed services in prod.
+postgres:
+  enabled: true
+  image: postgres:16.4-alpine
+  persistence:
+    enabled: true
+    size: 10Gi
+    storageClass: ""
+  resources:
+    requests:
+      cpu: 50m
+      memory: 128Mi
+    limits:
+      memory: 512Mi
+  auth:
+    username: pargar
+    database: pargar
+    # Empty → chart generate-once; placeholders change-me-* are ignored.
+    password: ""
+  existingSecret: ""
+
+redis:
+  enabled: true
+  image: redis@sha256:858f009f9709ce576febc734aa78b8f6d624b82571f9ddb6bda4377c833b3499
+  persistence:
+    enabled: true
+    size: 2Gi
+    storageClass: ""
+  resources:
+    requests:
+      cpu: 25m
+      memory: 64Mi
+    limits:
+      memory: 256Mi
+  auth:
+    password: ""
+  existingSecret: ""
+
+rustfs:
+  enabled: true
+  image: rustfs/rustfs@sha256:1803faef57627e2d9c2e7d89d655d712ddded5389040054987163043fecb6a3c
+  persistence:
+    enabled: true
+    size: 20Gi
+    storageClass: ""
+  resources:
+    requests:
+      cpu: 50m
+      memory: 128Mi
+    limits:
+      memory: 512Mi
+  auth:
+    accessKey: "pargar-rustfs"
+    secretKey: ""
+  bucket: pargar
+  region: us-east-1
+  consoleEnable: false
+  existingSecret: ""
+
+# Postgres dump CronJob (in-cluster postgres only).
+backup:
+  enabled: false
+  schedule: "0 3 * * *"
+  retentionDays: 7
+  persistence:
+    size: 5Gi
+    storageClass: ""
+  image: postgres:16.4-alpine
+
+# External endpoints when in-cluster postgres/redis/rustfs are disabled.
+# Prefer putting these in backend.existingSecret in production.
+external:
+  databaseUrl: ""
+  redisUrl: ""
+  storageEndpoint: ""
+  storageAccessKey: ""
+  storageSecretKey: ""
+
+ingress:
+  enabled: true
+  # k3s ships Traefik; use IngressRoute CRDs (recommended) or standard Ingress
+  className: traefik
+  # Use Traefik IngressRoute + Middleware CRDs (true) vs networking.k8s.io/Ingress (false)
+  useIngressRoute: true
+  annotations: {}
+  tls:
+    enabled: true
+    # When empty and certManager.enabled=false, chart creates a self-signed Secret for k3s/dev.
+    # Prefer certManager.enabled=true in prod, or set existingSecret to a pre-created TLS secret.
+    existingSecret: ""
+    # cert-manager ClusterIssuer name (annotation helper when useIngressRoute=false)
+    clusterIssuer: ""
+
+# cert-manager Certificate CR (writes TLS secret used by IngressRoute)
+certManager:
+  enabled: false
+  duration: 2160h
+  renewBefore: 360h
+  issuerRef:
+    name: letsencrypt-prod
+    kind: ClusterIssuer
+    group: ""
+  extraDnsNames: []
+
+# Restrict pod traffic (off for local k3s; on in values-prod.yaml)
+networkPolicy:
+  enabled: false
+  # Namespaces whose pods may reach frontend/backend (Traefik)
+  ingressNamespaces:
+    - kube-system
+  ingressPodLabels:
+    app.kubernetes.io/name: traefik
+
+middlewares:
+  securityHeaders: true
+  compress: true
+  redirectHttps: true
+
+serviceAccount:
+  create: true
+  name: ""
+  annotations: {}
+
+podSecurityContext:
+  fsGroup: 10001
+
+securityContext:
+  runAsNonRoot: true
+  runAsUser: 10001
+  allowPrivilegeEscalation: false
+  readOnlyRootFilesystem: false
+  capabilities:
+    drop: ["ALL"]
+
+nodeSelector: {}
+tolerations: []
+affinity: {}

deploy/traefik/dynamic/middlewares.yml

@@ -0,0 +1,45 @@
+# Shared Traefik middlewares (file provider).
+# Applied via Docker labels / IngressRoute references.
+
+http:
+  middlewares:
+    redirect-https:
+      redirectScheme:
+        scheme: https
+        permanent: true
+
+    security-headers:
+      headers:
+        stsSeconds: 31536000
+        stsIncludeSubdomains: true
+        stsPreload: false
+        contentTypeNosniff: true
+        browserXssFilter: true
+        frameDeny: true
+        referrerPolicy: strict-origin-when-cross-origin
+        permissionsPolicy: "camera=(), microphone=(), geolocation=()"
+        customResponseHeaders:
+          Server: ""
+          Content-Security-Policy: >-
+            default-src 'self'; base-uri 'self'; form-action 'self';
+            frame-ancestors 'none'; object-src 'none';
+            script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline';
+            img-src 'self' data: blob:; font-src 'self' data:;
+            media-src 'self' blob:; connect-src 'self' ws: wss:;
+            worker-src 'self' blob:
+
+    compress:
+      compress: {}
+
+    noindex:
+      headers:
+        customResponseHeaders:
+          X-Robots-Tag: "noindex, nofollow, noarchive"
+
+    # Strip client-supplied forwarding headers before Traefik re-adds trusted ones.
+    # Backend trusts X-Forwarded-* only from TRUSTED_PROXY_CIDRS (Docker/k8s nets).
+    strip-forwarded:
+      headers:
+        customRequestHeaders:
+          X-Real-IP: ""
+          X-Forwarded-For: ""

docker-compose.yml

@@ -0,0 +1,11 @@
+# Default local stack = base + Traefik (dev).
+# Prefer explicit scripts for clarity:
+#   ./scripts/compose-dev.sh up -d --build
+#   ./scripts/compose-prod.sh up -d --build
+#
+# Equivalent:
+#   docker compose -f deploy/compose/compose.yaml -f deploy/compose/compose.dev.yaml up -d --build
+
+include:
+  - path: deploy/compose/compose.yaml
+  - path: deploy/compose/compose.dev.yaml

docs/configuration.md

@@ -63,6 +63,7 @@ One of two patterns:
 |----------|-----------------|--------|
 | `DEV_MODE` | false | Open metrics without token, limited fail-open behavior |
 | `SEED_CURRICULUM` | false (empty in DevMode → true) | Seed lessons/events |
+| `REGISTRATION_ENFORCE_IP` | false | One registration per client IP; keep off behind NAT |
 | `CAPTCHA_EXPOSE_ANSWER` | DevMode only | For tests; never in production |
 | `DONATION_ENABLED` | true | Support card |
 | `DONATION_NOTE` | Copy text | |

docs/product.md

@@ -28,7 +28,7 @@
 
 - Whitelist and blacklist are **mutually exclusive**; import resolves conflicts.
 - A phone already tied to an account cannot re-enter either list as a fresh entry.
-- One account per phone and per IP on registration paths.
+- One account per phone. Optional one-account-per-IP (`REGISTRATION_ENFORCE_IP`, default off — unsuitable behind NAT).
 - Blacklist blocks all registration paths (public + invite) and keeps a failed-attempt history tab.
 
 ## Certificates

docs/security.md

@@ -25,6 +25,10 @@ Public password recovery (`/api/auth/recovery/*` and `/recovery`) is disabled fo
 - Only peers in `TRUSTED_PROXY_CIDRS` are trusted for `X-Forwarded-*` / `X-Real-IP`.
 - CORS: `FRONTEND_ORIGINS` + `PUBLIC_URL` with `AllowCredentials: true`.
 
+## Registration IP binding
+
+`REGISTRATION_ENFORCE_IP` (default **false**) optionally limits one successful public/invite registration per client IP. Leave it off when the app sits behind NAT or shared egress and cannot see real client addresses. Enable only after the edge forwards trustworthy `X-Forwarded-For` / `X-Real-IP` via `TRUSTED_PROXY_CIDRS`.
+
 ## Rate limiting
 
 | Scope | Approximate behavior |
@@ -34,7 +38,7 @@ Public password recovery (`/api/auth/recovery/*` and `/recovery`) is disabled fo
 | External chat export | ~10/min/IP |
 | Per-user uploads | Separately limited |
 
-`/api/health` is excluded from the global ceiling.
+`/api/health` is excluded from the global ceiling. Note: per-IP rate limits still use the peer/forwarded address — configure trusted proxies when you need per-client fairness behind NAT.
 
 ## Uploads
 

frontend/.dockerignore

@@ -0,0 +1,4 @@
+.git
+.next
+node_modules
+*.log

frontend/.env.example

@@ -0,0 +1,3 @@
+# Local `npm run dev` (API on :8080 without Traefik). Leave empty when behind reverse proxy.
+NEXT_PUBLIC_API_URL=http://localhost:8080
+NEXT_PUBLIC_WS_URL=ws://localhost:8080/api/ws

frontend/.gitignore

@@ -0,0 +1,17 @@
+# deps
+node_modules/
+
+# next
+.next/
+out/
+
+# env
+.env*.local
+
+# misc
+*.log
+.DS_Store
+npm-debug.log*
+
+# vendored at install/build from emoji-datasource-apple (~27MB)
+/public/emoji/

frontend/Dockerfile

@@ -0,0 +1,45 @@
+FROM node:22-alpine AS deps
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+# Ignore lifecycle scripts here — vendor script is only present after full COPY.
+RUN npm ci --ignore-scripts
+
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+# Empty = same-origin (Traefik reverse proxy). For direct API access set build args.
+ARG NEXT_PUBLIC_API_URL=
+ARG NEXT_PUBLIC_WS_URL=
+ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
+ENV NEXT_PUBLIC_WS_URL=$NEXT_PUBLIC_WS_URL
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+# Vendor Apple emoji PNGs into public/ (external CDNs are often blocked).
+RUN node scripts/vendor-apple-emoji.mjs && npm run build
+
+FROM node:22-alpine AS runner
+
+WORKDIR /app
+ENV NODE_ENV=production
+
+RUN addgroup -S app && adduser -S app -G app
+
+COPY --from=builder --chown=app:app /app/public ./public
+COPY --from=builder --chown=app:app /app/.next ./.next
+COPY --from=builder --chown=app:app /app/package.json ./package.json
+COPY --from=builder --chown=app:app /app/next.config.mjs ./next.config.mjs
+COPY --from=builder --chown=app:app /app/node_modules ./node_modules
+
+# Public assets are required at runtime for /logo.png and for the
+# /_next/image optimizer's internal fetch of local paths.
+# next.config.mjs is required at runtime so images.contentDispositionType
+# and other config overrides are applied (not only baked into manifests).
+USER app
+
+EXPOSE 3000
+
+CMD ["npm", "run", "start"]

frontend/next-env.d.ts

@@ -0,0 +1,6 @@
+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+/// <reference path="./.next/types/routes.d.ts" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

frontend/next.config.mjs

@@ -0,0 +1,25 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  reactStrictMode: true,
+  eslint: { ignoreDuringBuilds: true },
+  images: {
+    // Default "attachment" can prevent some clients from rendering /_next/image in <img>.
+    contentDispositionType: "inline",
+  },
+  async redirects() {
+    return [
+      // Student self-service password recovery is disabled.
+      { source: "/recovery", destination: "/login", permanent: false },
+    ];
+  },
+  async headers() {
+    return [
+      {
+        source: "/c/:path*",
+        headers: [{ key: "X-Robots-Tag", value: "noindex, nofollow, noarchive" }],
+      },
+    ];
+  },
+};
+
+export default nextConfig;

frontend/package.json

@@ -0,0 +1,53 @@
+{
+  "name": "pargar-frontend",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev -p 3000",
+    "prebuild": "node scripts/vendor-apple-emoji.mjs",
+    "vendor:emoji": "node scripts/vendor-apple-emoji.mjs",
+    "build": "next build",
+    "start": "next start -p 3000",
+    "lint": "next lint",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@radix-ui/react-avatar": "^1.1.2",
+    "@radix-ui/react-dialog": "^1.1.4",
+    "@radix-ui/react-dropdown-menu": "^2.1.4",
+    "@radix-ui/react-label": "^2.1.1",
+    "@radix-ui/react-slot": "^1.1.1",
+    "@radix-ui/react-switch": "^1.1.2",
+    "@radix-ui/react-tabs": "^1.1.2",
+    "@tanstack/react-query": "^5.62.0",
+    "boring-avatars": "^2.0.4",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "date-fns": "^4.1.0",
+    "emoji-datasource-apple": "^15.1.2",
+    "framer-motion": "^12.0.0",
+    "lucide-react": "^0.468.0",
+    "next": "15.5.27",
+    "next-themes": "^0.4.4",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-multi-date-picker": "^4.5.2",
+    "sonner": "^1.7.1",
+    "tailwind-merge": "^2.6.0",
+    "tw-animate-css": "^1.4.0",
+    "zustand": "^5.0.2"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.0.0",
+    "@types/node": "^22.10.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "tailwindcss": "^4.0.0",
+    "typescript": "^5.7.0"
+  },
+  "overrides": {
+    "postcss": "8.5.28",
+    "sharp": "0.35.5",
+    "source-map-js": "1.2.2"
+  }
+}

frontend/postcss.config.mjs

@@ -0,0 +1,7 @@
+const config = {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};
+
+export default config;

frontend/scripts/vendor-apple-emoji.mjs

@@ -0,0 +1,22 @@
+#!/usr/bin/env node
+/**
+ * Copy Apple Color Emoji 64px PNGs into public/ so chat never depends on
+ * external CDNs (often blocked). Source: emoji-datasource-apple.
+ */
+import { cpSync, existsSync, mkdirSync, rmSync } from "node:fs";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const root = join(dirname(fileURLToPath(import.meta.url)), "..");
+const src = join(root, "node_modules/emoji-datasource-apple/img/apple/64");
+const dest = join(root, "public/emoji/apple/64");
+
+if (!existsSync(src)) {
+  console.warn("[vendor-apple-emoji] skip: emoji-datasource-apple not installed");
+  process.exit(0);
+}
+
+mkdirSync(dirname(dest), { recursive: true });
+rmSync(dest, { recursive: true, force: true });
+cpSync(src, dest, { recursive: true });
+console.log("[vendor-apple-emoji] copied → public/emoji/apple/64");

frontend/src/app/admin/page.tsx

@@ -0,0 +1,12 @@
+"use client";
+
+import { Suspense } from "react";
+import { AdminStudio } from "@/components/admin-studio";
+
+export default function AdminPage() {
+  return (
+    <Suspense fallback={null}>
+      <AdminStudio />
+    </Suspense>
+  );
+}

frontend/src/app/c/[id]/page.tsx

@@ -0,0 +1,219 @@
+"use client";
+
+import { useQuery, useQueryClient } from "@tanstack/react-query";
+import Link from "next/link";
+import { useParams } from "next/navigation";
+import { Loader2, Package } from "lucide-react";
+import { CertificateCard } from "@/components/certificate-card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { http, toUserError } from "@/lib/api";
+import { useAuth } from "@/lib/auth-store";
+import type { Certificate, CertificatePhysicalOrder, PhysicalCertSettings } from "@/lib/types";
+import { toast } from "@/components/providers";
+import { formatFaNumber } from "@/lib/utils";
+import { clampPhoneInput, normalizePhone, PHONE_INPUT_MAX_LEN } from "@/lib/validation";
+import { useEffect, useState } from "react";
+
+type PublicCertResponse = {
+  certificate: { publicId: string; fullName: string; issuedAt: string };
+  course: string;
+};
+
+const STATUS_LABEL: Record<string, string> = {
+  requested: "درخواست‌شده — منتظر تأیید پرداخت",
+  paid: "پرداخت تأیید شد — در صف ارسال",
+  shipped: "ارسال شد",
+  cancelled: "لغو شده",
+};
+
+export default function CertificatePage() {
+  const params = useParams<{ id: string }>();
+  const publicId = params?.id ?? "";
+  const authUser = useAuth((s) => s.user);
+  const qc = useQueryClient();
+  const [requesting, setRequesting] = useState(false);
+  const [form, setForm] = useState({
+    recipientName: "",
+    phone: "",
+    address: "",
+    city: "",
+    postalCode: "",
+  });
+
+  const { data, isLoading, error } = useQuery({
+    queryKey: ["certificate", publicId],
+    queryFn: () => http.get<PublicCertResponse>(`/api/certificates/${publicId}`),
+    enabled: !!publicId,
+    meta: { silentError: true },
+  });
+
+  const { data: mine } = useQuery({
+    queryKey: ["me", "certificate"],
+    queryFn: () =>
+      http.get<{
+        certificate: Certificate | null;
+        physicalOrder: CertificatePhysicalOrder | null;
+        physical: PhysicalCertSettings;
+      }>("/api/me/certificate"),
+    enabled: !!authUser,
+  });
+
+  const isOwner = !!authUser && mine?.certificate?.publicId === publicId;
+
+  useEffect(() => {
+    if (!isOwner || !authUser) return;
+    setForm((f) => ({
+      ...f,
+      recipientName: f.recipientName || authUser.name || "",
+      phone: f.phone || authUser.phone || "",
+    }));
+  }, [isOwner, authUser]);
+
+  const requestPhysical = async () => {
+    setRequesting(true);
+    try {
+      await http.post("/api/me/certificate/physical", {
+        ...form,
+        phone: normalizePhone(form.phone),
+      });
+      toast.success("درخواست ثبت شد — پس از واریز با ادمین هماهنگ کنید");
+      qc.invalidateQueries({ queryKey: ["me", "certificate"] });
+    } catch (e) {
+      toast.error(toUserError(e));
+    } finally {
+      setRequesting(false);
+    }
+  };
+
+  if (isLoading) {
+    return (
+      <div className="flex min-h-[60vh] items-center justify-center">
+        <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
+      </div>
+    );
+  }
+
+  if (error || !data?.certificate) {
+    return (
+      <div className="mx-auto max-w-lg px-4 py-16 text-center">
+        <p className="text-lg font-bold">گواهینامه پیدا نشد</p>
+        <Button asChild className="mt-4" variant="outline">
+          <Link href="/">بازگشت</Link>
+        </Button>
+      </div>
+    );
+  }
+
+  const cert = data.certificate;
+  const order = isOwner ? mine?.physicalOrder : null;
+  const physical = isOwner ? mine?.physical : null;
+  const windowEndsAt = mine?.certificate?.issuedAt
+    ? new Date(mine.certificate.issuedAt).getTime() + (physical?.windowDays ?? 30) * 86400000
+    : 0;
+  const windowStillOpen = !windowEndsAt || Date.now() < windowEndsAt;
+  const windowOpen =
+    physical?.enabled &&
+    windowStillOpen &&
+    (!order || order.status === "cancelled") &&
+    !!mine?.certificate;
+
+  return (
+    <CertificateCard
+      cert={{
+        publicId: cert.publicId,
+        fullName: cert.fullName,
+        issuedAt: cert.issuedAt,
+        course: data.course,
+      }}
+      showOwnerLinks={!!authUser}
+    >
+      {isOwner && physical?.enabled && (
+        <div className="mt-8 space-y-3 border-t border-border pt-6">
+          <p className="flex items-center gap-2 text-sm font-bold">
+            <Package className="h-4 w-4" /> نسخه فیزیکی
+          </p>
+          <p className="text-xs text-muted-foreground">
+            قیمت حدودی {formatFaNumber(physical.priceIrr)} ریال · مهلت درخواست{" "}
+            {formatFaNumber(physical.windowDays)} روز از صدور
+            {windowEndsAt ? ` (تا ${new Date(windowEndsAt).toLocaleDateString("fa-IR")})` : ""}.
+            پرداخت آنلاین در سامانه نداریم. پس از واریز بیرونی با ادمین هماهنگ کنید تا وضعیت سفارش به‌روز شود.
+          </p>
+          {order && order.status !== "cancelled" ? (
+            <div className="space-y-2 rounded-xl border border-border bg-muted/30 p-3 text-sm">
+              <p>
+                وضعیت: <span className="font-medium">{STATUS_LABEL[order.status] ?? order.status}</span>
+              </p>
+              {order.trackingCode && (
+                <p className="font-mono text-xs" dir="ltr">
+                  کد پیگیری: {order.trackingCode}
+                </p>
+              )}
+              {order.city && (
+                <p className="text-xs text-muted-foreground">
+                  ارسال به {order.recipientName || "—"} · {order.city}
+                </p>
+              )}
+              {order.note && <p className="text-xs text-muted-foreground">یادداشت ادمین: {order.note}</p>}
+              <Button
+                size="sm"
+                variant="outline"
+                onClick={() =>
+                  window.dispatchEvent(new CustomEvent("pargar:chat", { detail: { open: true } }))
+                }
+              >
+                هماهنگی با تیم
+              </Button>
+            </div>
+          ) : windowOpen ? (
+            <div className="space-y-2">
+              <div className="grid gap-2 sm:grid-cols-2">
+                <Input
+                  placeholder="نام گیرنده"
+                  value={form.recipientName}
+                  onChange={(e) => setForm((f) => ({ ...f, recipientName: e.target.value }))}
+                />
+                <Input
+                  placeholder="موبایل"
+                  value={form.phone}
+                  onChange={(e) => setForm((f) => ({ ...f, phone: clampPhoneInput(e.target.value) }))}
+                  dir="ltr"
+                  inputMode="tel"
+                  maxLength={PHONE_INPUT_MAX_LEN}
+                  className="text-left"
+                />
+                <Input
+                  placeholder="شهر"
+                  value={form.city}
+                  onChange={(e) => setForm((f) => ({ ...f, city: e.target.value }))}
+                />
+                <Input
+                  placeholder="کد پستی"
+                  value={form.postalCode}
+                  onChange={(e) => setForm((f) => ({ ...f, postalCode: e.target.value }))}
+                  dir="ltr"
+                />
+              </div>
+              <textarea
+                className="min-h-[72px] w-full rounded-md border border-input bg-background px-3 py-2 text-sm"
+                placeholder="آدرس کامل پستی"
+                value={form.address}
+                onChange={(e) => setForm((f) => ({ ...f, address: e.target.value }))}
+              />
+              <Button
+                size="sm"
+                disabled={requesting || !form.address.trim() || !form.city.trim()}
+                onClick={() => void requestPhysical()}
+              >
+                {requesting ? <Loader2 className="h-3.5 w-3.5 animate-spin" /> : <Package className="h-3.5 w-3.5" />}
+                ثبت درخواست نسخه فیزیکی
+              </Button>
+            </div>
+          ) : !windowStillOpen ? (
+            <p className="text-sm text-muted-foreground">مهلت درخواست نسخه فیزیکی به پایان رسیده است.</p>
+          ) : null}
+        </div>
+      )}
+    </CertificateCard>
+  );
+}

frontend/src/app/c/layout.tsx

@@ -0,0 +1,21 @@
+import type { Metadata } from "next";
+
+/** Certificate share links are unlisted — never index or follow. */
+export const metadata: Metadata = {
+  robots: {
+    index: false,
+    follow: false,
+    nocache: true,
+    noarchive: true,
+    nosnippet: true,
+    googleBot: {
+      index: false,
+      follow: false,
+      noimageindex: true,
+    },
+  },
+};
+
+export default function CertificateLayout({ children }: { children: React.ReactNode }) {
+  return children;
+}

frontend/src/app/cap/page.tsx

@@ -0,0 +1,459 @@
+"use client";
+
+import { useRouter, useSearchParams } from "next/navigation";
+import { useQuery, useQueryClient } from "@tanstack/react-query";
+import { Suspense, useEffect, useRef } from "react";
+import {
+  Award,
+  ArrowLeft,
+  BookOpenCheck,
+  CheckCircle2,
+  CalendarDays,
+  Flame,
+  Heart,
+  Lock,
+  MessageSquare,
+  Package,
+  PlayCircle,
+  Sparkles,
+  TrendingUp,
+  AlertTriangle,
+} from "lucide-react";
+import { SkillTree } from "@/components/skill-tree";
+import { Skeleton } from "@/components/ui/skeleton";
+import { http, toUserError } from "@/lib/api";
+import type { Certificate, CertificatePhysicalOrder, MeetingEvent, PhysicalCertSettings, TreeData, TreeLesson } from "@/lib/types";
+import { Button } from "@/components/ui/button";
+import { useAuth } from "@/lib/auth-store";
+import { cn, formatFaNumber, formatStreakLabel } from "@/lib/utils";
+import { clampHearts, hasInfiniteHearts, INFINITE_HEARTS_LABEL, MAX_HEARTS } from "@/lib/hearts";
+import { toast } from "@/components/providers";
+
+export default function CapPage() {
+  return (
+    <Suspense fallback={<CapSkeleton />}>
+      <CapPageInner />
+    </Suspense>
+  );
+}
+
+function CapPageInner() {
+  const router = useRouter();
+  const params = useSearchParams();
+  const rootRef = useRef<HTMLDivElement>(null);
+  const user = useAuth((s) => s.user);
+  const qc = useQueryClient();
+
+  const { data, isLoading } = useQuery({
+    queryKey: ["tree"],
+    queryFn: () => http.get<TreeData>("/api/tree"),
+    refetchInterval: 60_000,
+  });
+
+  const { data: eventsData } = useQuery({
+    queryKey: ["events", "upcoming-cap"],
+    queryFn: () => http.get<{ events: MeetingEvent[] }>("/api/events"),
+    staleTime: 60_000,
+  });
+
+  const allLessons = (data?.chapters ?? []).flatMap((ch) => ch.lessons ?? []);
+  const completedCount = allLessons.filter((l) => l.progress?.passedQuiz).length;
+  const curriculumDone = allLessons.length > 0 && completedCount === allLessons.length;
+
+  useEffect(() => {
+    const lesson = params.get("lesson");
+    if (lesson && rootRef.current) {
+      rootRef.current.scrollIntoView({ behavior: "smooth" });
+    }
+  }, [params]);
+
+  const { data: certData } = useQuery({
+    queryKey: ["me", "certificate"],
+    queryFn: () =>
+      http.get<{
+        certificate: Certificate | null;
+        physicalOrder: CertificatePhysicalOrder | null;
+        physical: PhysicalCertSettings;
+      }>("/api/me/certificate"),
+    enabled: !!user && curriculumDone,
+  });
+
+  useEffect(() => {
+    if (!curriculumDone || !user) return;
+    void http
+      .post("/api/me/certificate/issue", {})
+      .then(() => qc.invalidateQueries({ queryKey: ["me", "certificate"] }))
+      .catch((e) => toast.error(toUserError(e, "صدور گواهینامه ممکن نشد")));
+  }, [curriculumDone, user, qc]);
+
+  if (isLoading) {
+    return <CapSkeleton />;
+  }
+
+  const me = data?.me;
+  const all = allLessons;
+  const lockedCount = all.filter((l) => l.locked).length;
+  const inProgress = all.filter(
+    (l) => !l.locked && !l.progress?.passedQuiz && (l.progress?.watchedPct ?? 0) > 0 && !l.progress?.quizUnlocked,
+  );
+  const readyQuiz = all.filter((l) => !l.locked && !l.progress?.passedQuiz && !!l.progress?.quizUnlocked);
+  const openAndNew = all.filter((l) => !l.locked && !l.progress?.passedQuiz);
+  const firstLocked = all.find((l) => l.locked);
+  const done = curriculumDone;
+
+  const pct = all.length ? Math.round((completedCount / all.length) * 100) : 0;
+  const hearts = clampHearts(me?.hearts ?? user?.hearts ?? MAX_HEARTS);
+  const lowHearts = !hasInfiniteHearts(user?.role) && hearts > 0 && hearts <= 1;
+  const nextEvent = (eventsData?.events ?? [])[0];
+  const physicalOpen =
+    done &&
+    certData?.physical?.enabled &&
+    !!certData.certificate &&
+    (!certData.physicalOrder || certData.physicalOrder.status === "cancelled") &&
+    (!certData.certificate.issuedAt ||
+      Date.now() <
+        new Date(certData.certificate.issuedAt).getTime() +
+          (certData.physical.windowDays || 30) * 24 * 60 * 60 * 1000);
+
+  const next = nextAction(inProgress, readyQuiz, openAndNew, firstLocked, done);
+
+  return (
+    <div className="space-y-8" ref={rootRef}>
+      <div className="flex flex-wrap items-end justify-between gap-4">
+        <div>
+          <p className="section-kicker">مسیر شما</p>
+          <h1 className="mt-2 text-3xl font-black tracking-tight sm:text-5xl">
+            درخت <span className="text-primary">مهارت</span>
+          </h1>
+          <p className="mt-2 max-w-xl text-sm text-muted-foreground">
+            الان روی گام بعدی تمرکز کنید — تماشا، آزمون، رویداد یا گواهینامه.
+          </p>
+        </div>
+        <div className="flex items-center gap-2">
+          <span className="inline-flex items-center gap-1.5 rounded-full bg-accent/10 px-3 py-1.5 text-sm font-bold text-accent">
+            <Flame className="h-4 w-4" /> {formatStreakLabel(me?.streak ?? user?.streakCurrent ?? 0)}
+          </span>
+          <span className="inline-flex items-center gap-1.5 rounded-full bg-gold/10 px-3 py-1.5 text-sm font-bold text-gold">
+            <Sparkles className="h-4 w-4" /> {formatFaNumber(me?.xp ?? user?.xp ?? 0)} امتیاز
+          </span>
+          <span
+            className={cn(
+              "inline-flex items-center gap-1.5 rounded-full px-3 py-1.5 text-sm font-bold",
+              lowHearts ? "bg-destructive/15 text-destructive" : "bg-primary/10 text-primary",
+            )}
+          >
+            <Heart className="h-4 w-4 fill-current" />{" "}
+            {hasInfiniteHearts(user?.role)
+              ? `${INFINITE_HEARTS_LABEL} جان`
+              : `${formatFaNumber(hearts)} جان`}
+          </span>
+        </div>
+      </div>
+
+      {lowHearts && (
+        <div className="flex flex-wrap items-center justify-between gap-3 rounded-2xl border-2 border-destructive/30 bg-destructive/5 px-5 py-4">
+          <div className="flex items-start gap-3">
+            <AlertTriangle className="mt-0.5 h-5 w-5 shrink-0 text-destructive" />
+            <div>
+              <p className="text-sm font-extrabold text-destructive">فقط {formatFaNumber(hearts)} جان مانده</p>
+              <p className="text-xs text-muted-foreground">
+                یک اشتباه دیگر حساب را قفل می‌کند. قبل از آزمون مطمئن شوید؛ اگر گیر کردید با منتور حرف بزنید.
+              </p>
+            </div>
+          </div>
+          <Button
+            variant="outline"
+            size="sm"
+            onClick={() =>
+              window.dispatchEvent(new CustomEvent("pargar:chat", { detail: { open: true } }))
+            }
+          >
+            <MessageSquare className="h-4 w-4" /> منتور
+          </Button>
+        </div>
+      )}
+
+      {done && (
+        <div className="flex flex-wrap items-center justify-between gap-3 rounded-2xl border-2 border-primary/30 bg-primary/5 px-5 py-4">
+          <div>
+            <p className="text-sm font-extrabold">دوره را تمام کردید</p>
+            <p className="text-xs text-muted-foreground">
+              گواهینامه دیجیتال آماده است
+              {physicalOpen ? " — می‌توانید نسخه فیزیکی هم درخواست کنید." : "."}
+            </p>
+          </div>
+          <div className="flex flex-wrap gap-2">
+            <Button
+              onClick={() => {
+                const id = certData?.certificate?.publicId;
+                if (id) router.push(`/c/${id}`);
+                else {
+                  void http
+                    .post<{ certificate: { publicId: string } }>("/api/me/certificate/issue", {})
+                    .then((r) => {
+                      if (r.certificate?.publicId) router.push(`/c/${r.certificate.publicId}`);
+                    })
+                    .catch((e) => toast.error(toUserError(e, "صدور گواهینامه ممکن نشد")));
+                }
+              }}
+            >
+              <Award className="h-4 w-4" /> مشاهده گواهینامه
+            </Button>
+            {physicalOpen && certData?.certificate?.publicId && (
+              <Button variant="outline" onClick={() => router.push(`/c/${certData.certificate!.publicId}`)}>
+                <Package className="h-4 w-4" /> نسخه فیزیکی
+              </Button>
+            )}
+          </div>
+        </div>
+      )}
+
+      <div className="grid gap-5 md:grid-cols-5">
+        <div className="rounded-2xl border-2 border-border bg-card p-5 shadow-offset-sm md:col-span-2">
+          <div className="flex items-center justify-between">
+            <p className="flex items-center gap-2 text-sm font-extrabold">
+              <TrendingUp className="h-4 w-4 text-primary" /> پیشرفت کل
+            </p>
+            <span className="text-2xl font-black tabular-nums text-primary">{pct}٪</span>
+          </div>
+          <div className="mt-3 h-3.5 w-full overflow-hidden rounded-full bg-muted">
+            <div className="h-full rounded-full bg-primary transition-all" style={{ width: `${Math.max(pct, 3)}%` }} />
+          </div>
+          <div className="mt-4 grid grid-cols-3 gap-2 text-center">
+            <div className="rounded-xl bg-success/10 px-2 py-2.5">
+              <p className="text-lg font-black text-success">{completedCount}</p>
+              <p className="text-[11px] font-bold text-muted-foreground">تکمیل‌شده</p>
+            </div>
+            <div className="rounded-xl bg-primary/10 px-2 py-2.5">
+              <p className="text-lg font-black text-primary">{inProgress.length}</p>
+              <p className="text-[11px] font-bold text-muted-foreground">در جریان</p>
+            </div>
+            <div className="rounded-xl bg-muted px-2 py-2.5">
+              <p className="text-lg font-black text-muted-foreground">{lockedCount}</p>
+              <p className="text-[11px] font-bold text-muted-foreground">قفل‌شده</p>
+            </div>
+          </div>
+          <div className="mt-4 space-y-1.5">
+            {(data?.chapters ?? []).map((ch) => {
+              const chDone = ch.lessons.filter((l) => l.progress?.passedQuiz).length;
+              return (
+                <div key={ch.id} className="flex items-center justify-between text-xs">
+                  <span className="font-bold text-muted-foreground">{ch.title}</span>
+                  <span
+                    className={cn(
+                      "font-black tabular-nums",
+                      chDone === ch.lessons.length ? "text-success" : "text-foreground",
+                    )}
+                  >
+                    {chDone}/{ch.lessons.length}
+                  </span>
+                </div>
+              );
+            })}
+          </div>
+          {nextEvent && (
+            <button
+              type="button"
+              onClick={() => router.push("/unwrap?tab=events")}
+              className="mt-4 flex w-full items-start gap-2 rounded-xl border border-border/70 bg-muted/40 px-3 py-2.5 text-start transition hover:border-primary/40"
+            >
+              <CalendarDays className="mt-0.5 h-4 w-4 shrink-0 text-primary" />
+              <span className="min-w-0">
+                <span className="block text-[10px] font-extrabold text-primary">رویداد نزدیک</span>
+                <span className="block truncate text-xs font-bold">{nextEvent.title}</span>
+                <span className="block text-[10px] text-muted-foreground">
+                  {new Date(nextEvent.startsAt).toLocaleString("fa-IR")}
+                </span>
+              </span>
+            </button>
+          )}
+        </div>
+
+        <div
+          className={cn(
+            "flex flex-col justify-between rounded-2xl border-2 p-5 md:col-span-3",
+            next.locked
+              ? "border-border bg-muted/40"
+              : "border-primary/40 bg-primary/5"
+          )}
+        >
+          <p
+            className={cn(
+              "flex items-center gap-2 text-xs font-extrabold tracking-wider",
+              next.locked ? "text-muted-foreground" : "text-primary"
+            )}
+          >
+            {next.locked ? <Lock className="h-4 w-4" /> : <ZapIcon className="h-4 w-4" />}
+            {next.locked ? "هنوز قفل است" : "گام بعدی شما"}
+          </p>
+          <div className="mt-3 flex flex-1 flex-col items-start justify-center">
+            <h2 className="text-xl font-black leading-snug sm:text-2xl">{next.title}</h2>
+            <p className="mt-1.5 text-sm leading-relaxed text-muted-foreground">{next.desc}</p>
+          </div>
+          <div className="mt-4 flex flex-wrap gap-2">
+            {next.cta ? (
+              <Button size="lg" onClick={() => router.push(next.cta!)} className="gap-2">
+                {next.icon} {next.label}
+              </Button>
+            ) : next.prereqId ? (
+              <Button size="lg" variant="secondary" onClick={() => router.push(`/player/${next.prereqId}`)} className="gap-2">
+                <PlayCircle className="h-5 w-5" /> رفتن به پیش‌نیاز
+              </Button>
+            ) : (
+              <div className="inline-flex items-center gap-2 rounded-xl bg-muted px-3.5 py-2.5 text-sm font-bold text-muted-foreground">
+                <Lock className="h-4 w-4" /> ابتدا درس پیش‌نیاز را کامل کنید
+              </div>
+            )}
+            <Button
+              size="lg"
+              variant="outline"
+              onClick={() =>
+                window.dispatchEvent(new CustomEvent("pargar:chat", { detail: { open: true } }))
+              }
+            >
+              <MessageSquare className="h-5 w-5" /> منتور
+            </Button>
+          </div>
+        </div>
+      </div>
+
+      {data && <SkillTree data={data} onSelect={(id) => router.push(`/player/${id}`)} />}
+
+      <div className="flex flex-wrap items-center gap-x-5 gap-y-2 text-xs font-bold text-muted-foreground">
+        <span className="inline-flex items-center gap-1.5">
+          <CheckCircle2 className="h-4 w-4 text-success" /> تکمیل‌شده
+        </span>
+        <span className="inline-flex items-center gap-1.5">
+          <PlayCircle className="h-4 w-4 text-primary" /> در دسترس
+        </span>
+        <span className="inline-flex items-center gap-1.5">
+          <BookOpenCheck className="h-4 w-4 text-gold" /> آمادهٔ آزمون
+        </span>
+        <span className="inline-flex items-center gap-1.5">
+          <Lock className="h-4 w-4 text-muted-foreground" /> قفل‌شده
+        </span>
+      </div>
+    </div>
+  );
+}
+
+function nextAction(
+  inProgress: TreeLesson[],
+  readyQuiz: TreeLesson[],
+  openAndNew: TreeLesson[],
+  firstLocked: TreeLesson | undefined,
+  done: boolean,
+) {
+  if (readyQuiz[0]) {
+    const lesson = readyQuiz[0];
+    return {
+      title: `آزمون «${lesson.title}» منتظر شماست`,
+      desc: "آموخته‌هایتان را محک بزنید؛ هر پاسخ اشتباه یک جان کم می‌کند.",
+      label: "شروع آزمون",
+      cta: `/quiz/${lesson.id}`,
+      icon: <BookOpenCheck className="h-5 w-5" />,
+      locked: false,
+      prereqId: null as number | null,
+    };
+  }
+  if (inProgress[0]) {
+    const lesson = inProgress[0];
+    const pct = Math.round(lesson.progress?.watchedPct ?? 0);
+    return {
+      title: `ادامهٔ تماشای «${lesson.title}»`,
+      desc: `${formatFaNumber(pct)}٪ تماشا شده — با رسیدن به آستانه، آزمون باز می‌شود.`,
+      label: "ادامهٔ تماشا",
+      cta: `/player/${lesson.id}`,
+      icon: <PlayCircle className="h-5 w-5" />,
+      locked: false,
+      prereqId: null as number | null,
+    };
+  }
+  if (openAndNew[0]) {
+    const lesson = openAndNew[0];
+    return {
+      title: `شروع «${lesson.title}»`,
+      desc: `${formatFaNumber(lesson.durationSeconds)} ثانیه تماشای تأییدشده · ${formatFaNumber(lesson.xpReward)} امتیاز پاداش در صورت تکمیل.`,
+      label: "شروع درس",
+      cta: `/player/${lesson.id}`,
+      icon: <PlayCircle className="h-5 w-5" />,
+      locked: false,
+      prereqId: null as number | null,
+    };
+  }
+  if (firstLocked) {
+    return {
+      title: `«${firstLocked.title}» قفل است`,
+      desc: "بعد از تکمیل صادقانهٔ درس پیش‌نیاز و قبولی در آزمونش، این شاخه باز می‌شود.",
+      label: "",
+      cta: null as string | null,
+      icon: null,
+      locked: true,
+      prereqId: firstLocked.requiresLessonId ?? null,
+    };
+  }
+  if (done) {
+    return {
+      title: "همهٔ شاخه‌ها را آزاد کردید",
+      desc: "تمام دروس تکمیل‌شده‌اند. گواهینامه را ببینید یا لیگ این هفته را فتح کنید.",
+      label: "رفتن به لیگ‌ها",
+      cta: "/leaderboard",
+      icon: <ArrowLeft className="h-5 w-5" />,
+      locked: false,
+      prereqId: null as number | null,
+    };
+  }
+  return {
+    title: "مسیر آماده است",
+    desc: "داده‌ای برای نمایش نیست.",
+    label: "",
+    cta: null as string | null,
+    icon: null,
+    locked: false,
+    prereqId: null as number | null,
+  };
+}
+
+function CapSkeleton() {
+  return (
+    <div className="space-y-8">
+      <div className="flex flex-wrap items-end justify-between gap-4">
+        <div className="space-y-2.5">
+          <Skeleton className="h-3.5 w-36" />
+          <Skeleton className="h-10 w-64" />
+          <Skeleton className="h-4 w-96 max-w-full" />
+        </div>
+        <div className="flex items-center gap-2">
+          <Skeleton className="h-8 w-24 rounded-full" />
+          <Skeleton className="h-8 w-24 rounded-full" />
+          <Skeleton className="h-8 w-24 rounded-full" />
+        </div>
+      </div>
+      <div className="grid gap-5 md:grid-cols-5">
+        <div className="space-y-4 rounded-2xl border-2 border-border bg-card p-5 shadow-offset-sm md:col-span-2">
+          <Skeleton className="h-5 w-32" />
+          <Skeleton className="h-3.5 w-full rounded-full" />
+          <div className="grid grid-cols-3 gap-2">
+            {Array.from({ length: 3 }).map((_, i) => (
+              <Skeleton key={i} className="h-16 rounded-xl" />
+            ))}
+          </div>
+        </div>
+        <div className="rounded-2xl border-2 border-primary/40 bg-primary/5 p-5 md:col-span-3">
+          <Skeleton className="h-4 w-28" />
+          <Skeleton className="mt-3 h-7 w-3/4" />
+          <Skeleton className="mt-2 h-4 w-1/2" />
+          <Skeleton className="mt-6 h-11 w-40 rounded-xl" />
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function ZapIcon(props: { className?: string }) {
+  return (
+    <svg viewBox="0 0 24 24" fill="currentColor" {...props}>
+      <path d="M13 2 4.5 13.5H11l-.8 8.5L18.5 10H12l1-8z" />
+    </svg>
+  );
+}

frontend/src/app/community/page.tsx

@@ -0,0 +1,13 @@
+"use client";
+
+import { useEffect } from "react";
+import { useRouter } from "next/navigation";
+
+/** Shortcut so /community never 404s. */
+export default function CommunityRedirectPage() {
+  const router = useRouter();
+  useEffect(() => {
+    router.replace("/unwrap?tab=community");
+  }, [router]);
+  return null;
+}

frontend/src/app/globals.css

@@ -0,0 +1,647 @@
+@import "tailwindcss";
+@import "tw-animate-css";
+
+/* enable dark-variant & class-based theming */
+@custom-variant dark (&:is(.dark *));
+
+/* ============================================================
+   Pargar design system — soft pastel, a touch of glass,
+   calm shadows, gentle motion.
+   ============================================================ */
+:root {
+  --background: #f4f5fb;
+  --foreground: #2a2745;
+  --card: #ffffff;
+  --card-foreground: #2a2745;
+  --popover: #ffffff;
+  --popover-foreground: #2a2745;
+  --primary: #6d63f0;
+  --primary-foreground: #ffffff;
+  --secondary: #5a6380;
+  --secondary-foreground: #ffffff;
+  --muted: #edeef7;
+  --muted-foreground: #6b6c8a;
+  --accent: #ec6fa9;
+  --accent-foreground: #ffffff;
+  --destructive: #e05c70;
+  --destructive-foreground: #ffffff;
+  --success: #3ec98a;
+  --success-foreground: #ffffff;
+  --gold: #f2a437;
+  --gold-foreground: #3f2a04;
+  --border: #d9dbe9;
+  --input: #c9cbdf;
+  --ring: #6d63f0;
+  --radius: 0.5rem;
+  /* inverted editorial band (dark in light mode, light in dark mode) */
+  --invert-bg: #211f3e;
+  --invert-fg: #f6f5fb;
+  /* soft motion tokens */
+  --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
+  --ease-soft-in-out: cubic-bezier(0.45, 0.05, 0.25, 1);
+  --dur-fast: 280ms;
+  --dur-med: 420ms;
+  --dur-slow: 700ms;
+}
+
+.dark {
+  --background: #12111d;
+  --foreground: #ecebf6;
+  --card: #191830;
+  --card-foreground: #ecebf6;
+  --popover: #201f3a;
+  --popover-foreground: #ecebf6;
+  --primary: #9189fb;
+  --primary-foreground: #161129;
+  --secondary: #8d95ab;
+  --secondary-foreground: #10131e;
+  --muted: #262442;
+  --muted-foreground: #a7a8c9;
+  --accent: #f095c4;
+  --accent-foreground: #2a0f1f;
+  --destructive: #f47b8c;
+  --destructive-foreground: #2a0a0f;
+  --success: #63e0a5;
+  --success-foreground: #06210f;
+  --gold: #fab653;
+  --gold-foreground: #2a1a02;
+  --border: #353360;
+  --input: #4d4a7e;
+  --ring: #9189fb;
+  --radius: 0.25rem;
+  --invert-bg: #f0eff8;
+  --invert-fg: #18162e;
+}
+
+@theme inline {
+  /* next/font: FD default + plain Latin face for English-only fields */
+  /* Prefer Apple Color Emoji first; chat also renders Apple PNGs for Linux hosts. */
+  --font-sans: var(--font-vazirmatn), "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji",
+    sans-serif;
+  --font-emoji: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
+  --font-latin: var(--font-vazirmatn-latin), var(--font-vazirmatn), Tahoma, "Segoe UI", Arial,
+    sans-serif;
+  /* Technical / English strings keep Latin digits */
+  --font-mono: var(--font-vazirmatn-latin), ui-monospace, "Cascadia Code", "Source Code Pro", Menlo,
+    Consolas, monospace;
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-destructive-foreground: var(--destructive-foreground);
+  --color-success: var(--success);
+  --color-success-foreground: var(--success-foreground);
+  --color-gold: var(--gold);
+  --color-gold-foreground: var(--gold-foreground);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+  --radius-sm: 6px;
+  --radius-md: 8px;
+  --radius-lg: 10px;
+  --radius-xl: 14px;
+  --radius-2xl: 20px;
+  --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
+  --default-transition-duration: 350ms;
+  --default-transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
+}
+
+@layer base {
+  * {
+    border-color: var(--color-border);
+  }
+  html {
+    color-scheme: light;
+    scroll-behavior: smooth;
+    font-family: var(--font-sans);
+  }
+  html.dark {
+    color-scheme: dark;
+  }
+  body {
+    background-color: var(--background);
+    background-image:
+      radial-gradient(1100px 540px at 85% -8%, color-mix(in srgb, var(--color-accent) 11%, transparent), transparent 62%),
+      radial-gradient(1000px 520px at -8% 26%, color-mix(in srgb, var(--color-primary) 9%, transparent), transparent 60%),
+      radial-gradient(800px 420px at 50% 110%, color-mix(in srgb, var(--color-gold) 7%, transparent), transparent 60%);
+    background-attachment: fixed;
+    color: var(--foreground);
+    font-family: var(--font-sans);
+    -webkit-font-smoothing: antialiased;
+    text-rendering: optimizeLegibility;
+  }
+  /*
+   * Form controls: UA + Tailwind preflight use `font: inherit`, which is flaky.
+   * Pin family so Vazirmatn FD (Persian digits) paints the same as surrounding UI.
+   */
+  input,
+  textarea,
+  select,
+  button {
+    font-family: var(--font-sans) !important;
+    font-feature-settings: normal !important;
+  }
+  input::placeholder,
+  textarea::placeholder,
+  input::-webkit-input-placeholder,
+  textarea::-webkit-input-placeholder {
+    font-family: var(--font-sans) !important;
+    font-feature-settings: normal !important;
+  }
+  /*
+   * English-only typing surfaces: passwords, usernames, email, captcha, URLs, codes.
+   * Use plain Vazirmatn (non-FD) so Latin digits stay Latin.
+   */
+  .font-latin,
+  input.font-latin,
+  textarea.font-latin,
+  input[type="password"],
+  input[type="email"],
+  input[type="url"],
+  input[type="tel"],
+  input[dir="ltr"],
+  textarea[dir="ltr"],
+  input[autocomplete="username"],
+  input[autocomplete="email"],
+  input[autocomplete="current-password"],
+  input[autocomplete="new-password"],
+  input[autocomplete="one-time-code"],
+  input[id*="captcha" i],
+  input[name*="captcha" i],
+  input[id*="password" i],
+  input[name*="password" i],
+  input[id*="username" i],
+  input[name*="username" i] {
+    font-family: var(--font-latin) !important;
+    font-feature-settings: normal !important;
+    font-variant-numeric: lining-nums !important;
+  }
+  .font-latin::placeholder,
+  input.font-latin::placeholder,
+  textarea.font-latin::placeholder,
+  input[type="password"]::placeholder,
+  input[type="email"]::placeholder,
+  input[type="url"]::placeholder,
+  input[type="tel"]::placeholder,
+  input[dir="ltr"]::placeholder,
+  textarea[dir="ltr"]::placeholder {
+    font-family: var(--font-latin) !important;
+  }
+  input:-webkit-autofill,
+  input:-webkit-autofill:hover,
+  input:-webkit-autofill:focus,
+  textarea:-webkit-autofill,
+  select:-webkit-autofill {
+    font-family: var(--font-sans) !important;
+  }
+  h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6 {
+    font-weight: 800;
+    letter-spacing: -0.01em;
+    text-wrap: balance;
+  }
+  ::selection {
+    background: color-mix(in srgb, var(--color-primary) 22%, transparent);
+    color: inherit;
+  }
+  :focus-visible {
+    outline: 2px solid var(--color-ring);
+    outline-offset: 2px;
+  }
+  code {
+    font-family: var(--font-mono);
+    font-size: 0.875em;
+  }
+  ::-webkit-scrollbar {
+    width: 10px;
+    height: 10px;
+  }
+  ::-webkit-scrollbar-thumb {
+    background: color-mix(in srgb, var(--color-muted-foreground) 30%, transparent);
+    border-radius: 999px;
+    border: 2px solid var(--color-background);
+  }
+  ::-webkit-scrollbar-track {
+    background: transparent;
+  }
+}
+
+@layer components {
+  .chat-scroll {
+    scrollbar-width: thin;
+    scrollbar-color: color-mix(in srgb, var(--color-muted-foreground) 35%, transparent) transparent;
+  }
+  .chat-scroll::-webkit-scrollbar {
+    width: 6px;
+  }
+  .chat-scroll::-webkit-scrollbar-thumb {
+    background: color-mix(in srgb, var(--color-muted-foreground) 35%, transparent);
+    border-radius: 999px;
+    border-width: 0;
+  }
+  .section-kicker {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    font-size: 0.6875rem;
+    font-weight: 800;
+    letter-spacing: 0.1em;
+    color: var(--color-primary);
+  }
+  .section-kicker::before {
+    content: "";
+    display: inline-block;
+    width: 1.75rem;
+    height: 3px;
+    border-radius: 2px;
+    background: var(--color-primary);
+  }
+  /* kicker sitting on a solid primary panel — bar & text follow the opposing tone */
+  .section-kicker.on-primary {
+    color: var(--color-primary-foreground);
+  }
+  .section-kicker.on-primary::before {
+    background: var(--color-primary-foreground);
+  }
+  .card-hover {
+    transition:
+      border-color 150ms ease,
+      box-shadow 250ms ease,
+      transform 250ms cubic-bezier(0.16, 1, 0.3, 1);
+  }
+  .card-hover:hover {
+    border-color: color-mix(in srgb, var(--color-primary) 45%, transparent);
+    box-shadow:
+      0 2px 6px rgba(41, 39, 70, 0.05),
+      0 22px 44px -18px rgba(75, 66, 200, 0.22);
+    transform: translateY(-3px);
+  }
+  .dark .card-hover:hover {
+    border-color: color-mix(in srgb, var(--color-primary) 60%, transparent);
+    box-shadow:
+      0 2px 10px rgba(0, 0, 0, 0.4),
+      0 22px 44px -18px color-mix(in srgb, var(--color-primary) 40%, transparent);
+  }
+  .shadow-soft {
+    box-shadow:
+      0 2px 6px rgba(41, 39, 70, 0.05),
+      0 20px 44px -22px rgba(41, 39, 70, 0.2);
+  }
+  .dark .shadow-soft {
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), 0 22px 48px -22px rgba(0, 0, 0, 0.55);
+  }
+  /* signature offset shadow — softened for the pastel identity */
+  .shadow-offset {
+    box-shadow: 5px 5px 0 0 var(--invert-fg);
+  }
+  .shadow-offset-sm {
+    box-shadow: 4px 4px 0 0 var(--invert-fg);
+  }
+  /* in dark mode the offset shadow must stay visible against the dark canvas */
+  .dark .shadow-offset {
+    box-shadow: 5px 5px 0 0 rgba(255, 255, 255, 0.16);
+  }
+  .dark .shadow-offset-sm {
+    box-shadow: 4px 4px 0 0 rgba(255, 255, 255, 0.14);
+  }
+  /* inverted editorial band */
+  .band-invert {
+    background:
+      radial-gradient(900px 400px at 90% -20%, color-mix(in srgb, var(--color-accent) 26%, transparent), transparent 60%),
+      var(--invert-bg);
+    color: var(--invert-fg);
+  }
+  .chip-outline {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.4rem;
+    border: 2px solid currentColor;
+    border-radius: 999px;
+    padding: 0.35rem 0.8rem;
+    font-size: 0.75rem;
+    font-weight: 800;
+    letter-spacing: 0.04em;
+  }
+  .dot-grid {
+    background-image: radial-gradient(
+      color-mix(in srgb, currentColor 16%, transparent) 1px,
+      transparent 1px
+    );
+    background-size: 18px 18px;
+  }
+  .dot-grid-primary {
+    color: var(--color-primary);
+  }
+
+  /* frosted glass — a touch: soft, restrained */
+  .glass {
+    background: linear-gradient(150deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.28));
+    -webkit-backdrop-filter: blur(14px) saturate(1.3);
+    backdrop-filter: blur(14px) saturate(1.3);
+    border: 1px solid rgba(255, 255, 255, 0.5);
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.6),
+      0 16px 36px -22px rgba(41, 39, 70, 0.3);
+  }
+  .dark .glass {
+    background: linear-gradient(150deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.09),
+      0 16px 36px -22px rgba(0, 0, 0, 0.6);
+  }
+
+  /* frosted glow variants per status (colored ambience) */
+  .glass-glow-primary,
+  .glass-glow-accent,
+  .glass-glow-gold,
+  .glass-glow-success,
+  .glass-glow-neutral {
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.55),
+      0 14px 34px -12px rgba(41, 39, 70, 0.3);
+  }
+  .glass-glow-primary {
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.55),
+      0 14px 34px -12px color-mix(in srgb, var(--color-primary) 42%, transparent);
+  }
+  .glass-glow-accent {
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.55),
+      0 14px 34px -12px color-mix(in srgb, var(--color-accent) 40%, transparent);
+  }
+  .glass-glow-gold {
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.55),
+      0 14px 34px -12px color-mix(in srgb, var(--color-gold) 40%, transparent);
+  }
+  .glass-glow-success {
+    box-shadow:
+      inset 0 1px 0 rgba(255, 255, 255, 0.55),
+      0 14px 34px -12px color-mix(in srgb, var(--color-success) 40%, transparent);
+  }
+
+  /* glass navigation bar */
+  .nav-glass {
+    background: color-mix(in srgb, var(--color-background) 82%, transparent);
+    -webkit-backdrop-filter: blur(16px) saturate(1.5);
+    backdrop-filter: blur(16px) saturate(1.5);
+  }
+}
+
+@layer utilities {
+  /* legacy aliases now render soft + calm */
+  .bg-gradient-brand {
+    background-color: var(--color-primary);
+    background-image: none;
+  }
+  .text-gradient-brand {
+    color: var(--color-primary);
+    -webkit-background-clip: initial;
+    background-clip: initial;
+  }
+  .shadow-glow,
+  .shadow-glow-cyan {
+    box-shadow: none;
+  }
+
+  /* ---------- motion system (soft by default) ---------- */
+  .reveal {
+    opacity: 0;
+    animation: fadeUp 0.85s var(--ease-soft) forwards;
+  }
+  .reveal-1 { animation-delay: 0.08s; }
+  .reveal-2 { animation-delay: 0.16s; }
+  .reveal-3 { animation-delay: 0.24s; }
+  .reveal-4 { animation-delay: 0.32s; }
+  .reveal-5 { animation-delay: 0.4s; }
+  .reveal-scale {
+    opacity: 0;
+    animation: scaleIn 0.7s var(--ease-soft) forwards;
+  }
+  .hover-lift {
+    transition:
+      transform var(--dur-med) var(--ease-soft),
+      box-shadow var(--dur-med) var(--ease-soft);
+  }
+  .hover-lift:hover {
+    transform: translateY(-3px);
+    box-shadow:
+      0 2px 6px rgba(41, 39, 70, 0.05),
+      0 20px 40px -18px color-mix(in srgb, var(--color-primary) 26%, transparent);
+  }
+  .dark .hover-lift:hover {
+    box-shadow:
+      0 2px 10px rgba(0, 0, 0, 0.35),
+      0 20px 40px -18px color-mix(in srgb, var(--color-primary) 32%, transparent);
+  }
+  .press {
+    transition: transform var(--dur-fast) var(--ease-soft);
+  }
+  .press:active {
+    transform: translateY(1px) scale(0.985);
+  }
+  .press-flat:active {
+    transform: translateY(0.5px) scale(0.99);
+  }
+  .float-slow {
+    animation: floatY 9s var(--ease-soft-in-out) infinite;
+  }
+  .animate-pulse-soft {
+    animation: pulseSoft 3s var(--ease-soft-in-out) infinite;
+  }
+
+  /* Soften common Tailwind transition utilities */
+  .transition,
+  .transition-all,
+  .transition-colors,
+  .transition-opacity,
+  .transition-shadow,
+  .transition-transform {
+    transition-timing-function: var(--ease-soft);
+  }
+  .duration-75 { transition-duration: 180ms; }
+  .duration-100 { transition-duration: 220ms; }
+  .duration-150 { transition-duration: 280ms; }
+  .duration-200 { transition-duration: 350ms; }
+  .duration-300 { transition-duration: 420ms; }
+  .ease-out { transition-timing-function: var(--ease-soft); }
+  .ease-in-out { transition-timing-function: var(--ease-soft-in-out); }
+
+  /* Soften snappy active scales */
+  .active\:scale-90:active {
+    transform: scale(0.96);
+  }
+
+  @media (prefers-reduced-motion: reduce) {
+    .reveal,
+    .reveal-scale {
+      opacity: 1;
+      animation: none;
+    }
+    .float-slow,
+    .hover-lift,
+    .press,
+    .animate-pulse-soft,
+    .chat-msg-glow {
+      transition: none;
+      animation: none;
+    }
+  }
+}
+
+/* keyframes live at root so they always exist regardless of layers */
+@keyframes fadeUp {
+  from {
+    opacity: 0;
+    transform: translateY(12px);
+  }
+  to {
+    opacity: 1;
+    transform: none;
+  }
+}
+@keyframes scaleIn {
+  from {
+    opacity: 0;
+    transform: scale(0.985);
+  }
+  to {
+    opacity: 1;
+    transform: none;
+  }
+}
+@keyframes floatY {
+  0%,
+  100% {
+    transform: translateY(0);
+  }
+  50% {
+    transform: translateY(-6px);
+  }
+}
+@keyframes pulseSoft {
+  0%,
+  100% {
+    opacity: 1;
+  }
+  50% {
+    opacity: 0.7;
+  }
+}
+
+@keyframes chatMsgGlow {
+  0% {
+    filter: drop-shadow(0 0 0 transparent);
+  }
+  35% {
+    filter: drop-shadow(0 0 12px color-mix(in srgb, var(--color-gold) 55%, transparent))
+      drop-shadow(0 0 28px color-mix(in srgb, var(--color-gold) 28%, transparent));
+  }
+  100% {
+    filter: drop-shadow(0 0 0 transparent);
+  }
+}
+
+.chat-msg-glow {
+  animation: chatMsgGlow 1.85s var(--ease-soft) forwards;
+  will-change: filter;
+}
+
+@keyframes metaprog {
+  0% {
+    transform: translateX(-120%);
+  }
+  100% {
+    transform: translateX(420%);
+  }
+}
+
+/* Soften Tailwind ping / pulse defaults for this app */
+@keyframes softPing {
+  0% {
+    transform: scale(1);
+    opacity: 0.55;
+  }
+  75%,
+  100% {
+    transform: scale(1.45);
+    opacity: 0;
+  }
+}
+.animate-ping {
+  animation: softPing 1.6s var(--ease-soft-in-out) infinite;
+}
+
+@keyframes softPulse {
+  0%,
+  100% {
+    opacity: 1;
+  }
+  50% {
+    opacity: 0.72;
+  }
+}
+.animate-pulse {
+  animation: softPulse 2.8s var(--ease-soft-in-out) infinite;
+}
+
+/* ---- skeleton shimmer ------------------------------------------------ */
+.skeleton {
+  position: relative;
+  overflow: hidden;
+  background-color: var(--color-muted);
+  border-radius: 0.75rem;
+}
+.skeleton::after {
+  content: "";
+  position: absolute;
+  inset: 0;
+  transform: translateX(-100%);
+  background: linear-gradient(
+    90deg,
+    transparent,
+    color-mix(in srgb, var(--color-foreground) 8%, transparent),
+    transparent
+  );
+  animation: skeletonShimmer 2s var(--ease-soft-in-out) infinite;
+}
+@keyframes skeletonShimmer {
+  100% {
+    transform: translateX(100%);
+  }
+}
+
+/* ---- global motion safety --------------------------------------------- */
+@media (prefers-reduced-motion: no-preference) {
+  html {
+    scroll-behavior: smooth;
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  *,
+  *::before,
+  *::after {
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 0.01ms !important;
+    scroll-behavior: auto !important;
+  }
+}

frontend/src/app/layout.tsx

@@ -0,0 +1,59 @@
+import type { Metadata } from "next";
+import localFont from "next/font/local";
+import "./globals.css";
+import { Providers } from "@/components/providers";
+import { AppShell } from "@/components/app-shell";
+import { PageTransition } from "@/components/page-transition";
+
+/** Vazirmatn FD — default UI; Latin digits render as Persian glyphs. */
+const vazirmatnFd = localFont({
+  src: [
+    { path: "./fonts/Vazirmatn-FD-Thin.woff2", weight: "100", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-ExtraLight.woff2", weight: "200", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-Light.woff2", weight: "300", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-Regular.woff2", weight: "400", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-Medium.woff2", weight: "500", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-SemiBold.woff2", weight: "600", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-Bold.woff2", weight: "700", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-ExtraBold.woff2", weight: "800", style: "normal" },
+    { path: "./fonts/Vazirmatn-FD-Black.woff2", weight: "900", style: "normal" },
+  ],
+  display: "swap",
+  variable: "--font-vazirmatn",
+  fallback: ["Tahoma", "Segoe UI", "Arial", "sans-serif"],
+});
+
+/** Plain Vazirmatn — Latin digits stay Latin (passwords, usernames, captcha, URLs…). */
+const vazirmatnLatin = localFont({
+  src: "./fonts/Vazirmatn-Variable.woff2",
+  weight: "100 900",
+  display: "swap",
+  variable: "--font-vazirmatn-latin",
+  fallback: ["Tahoma", "Segoe UI", "Arial", "sans-serif"],
+});
+
+export const metadata: Metadata = {
+  title: "پرگار",
+  description: "مسیر یادگیری واقعی پرگار",
+};
+
+export default function RootLayout({ children }: { children: React.ReactNode }) {
+  return (
+    <html
+      lang="fa"
+      dir="rtl"
+      className={`${vazirmatnFd.variable} ${vazirmatnLatin.variable}`}
+      suppressHydrationWarning
+    >
+      <body
+        className={`${vazirmatnFd.className} min-h-screen bg-background font-sans text-foreground antialiased`}
+      >
+        <Providers>
+          <AppShell>
+            <PageTransition>{children}</PageTransition>
+          </AppShell>
+        </Providers>
+      </body>
+    </html>
+  );
+}

frontend/src/app/leaderboard/page.tsx

@@ -0,0 +1,31 @@
+"use client";
+
+import { Suspense } from "react";
+import { Trophy } from "lucide-react";
+import { LeaderboardPanel } from "@/components/leaderboard-panel";
+import { PageHeader } from "@/components/page-header";
+
+export default function LeaderboardPage() {
+  return (
+    <div className="space-y-8">
+      <PageHeader
+        align="center"
+        kicker="رقابت هفتگی"
+        title={
+          <>
+            لیگ <span className="text-gradient-brand">هفتگی</span>
+          </>
+        }
+        description="با تکمیل صادقانه دروس امتیاز بگیرید. لیگ هر دوشنبه صفر می‌شود — استمرار از شدت مهم‌تر است."
+        actions={
+          <span className="flex h-12 w-12 items-center justify-center rounded-xl bg-primary/10 text-primary">
+            <Trophy className="h-6 w-6" />
+          </span>
+        }
+      />
+      <Suspense fallback={null}>
+        <LeaderboardPanel />
+      </Suspense>
+    </div>
+  );
+}