Agent completed work jubii

src/pwa/manifest.webmanifest

@@ -0,0 +1,7 @@
+{
+  "$comment": "TODO(M3): finalize PWA manifest — icons, theme colors, installability (D-007).",
+  "name": "Whisper Web",
+  "short_name": "Whisper",
+  "start_url": "/",
+  "display": "standalone"
+}

src/pwa/sw.ts

@@ -0,0 +1,10 @@
+/**
+ * Service worker (Decisions.md D-007) — TODO(M3).
+ *
+ * Plan: precache the built app shell (hashed assets emitted by `bun build`
+ * into a generated manifest), cache-first for static assets, network-only for
+ * `/api/*`. Model weights are NOT cached here — Transformers.js keeps them in
+ * the browser Cache API itself (D-005).
+ */
+
+export {};