feat: release v0.1.3 chat, profiles, and media

Keep read receipts for the other person only, and let photos, voice, and files stay cached until they are actually replaced.

frontend/src/hooks/use-cached-media.ts

@@ -0,0 +1,36 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import { mediaObjectKey } from "@/lib/media";
+import { loadCachedMedia } from "@/lib/transfer";
+
+/** Local bytes for an image or similar object. A replacement has a new key and loads again. Video is not cached. */
+export function useCachedObjectUrl(url: string, cacheable = true): string {
+  const key = mediaObjectKey(url);
+  const [local, setLocal] = useState("");
+
+  useEffect(() => {
+    if (!cacheable || !url) {
+      setLocal("");
+      return;
+    }
+    let dead = false;
+    let objectUrl = "";
+    void loadCachedMedia(url)
+      .then((blob) => {
+        if (dead) return;
+        objectUrl = URL.createObjectURL(blob);
+        setLocal(objectUrl);
+      })
+      .catch(() => {
+        if (!dead) setLocal(url);
+      });
+    return () => {
+      dead = true;
+      if (objectUrl) URL.revokeObjectURL(objectUrl);
+    };
+  }, [cacheable, key, url]);
+
+  if (!cacheable) return url;
+  return local;
+}