fix(desktop): render popup overlays in packaged builds

Popup pages loaded their scripts as classic <script src> tags, which the
renderer build never bundles, so an installed app rendered only the static
markup: the recording tip stayed at 0:00 with no wave bars and live captions
showed nothing.

- declare popup scripts as modules so the build emits them, and fail
  packaging when a renderer page references an asset that was never produced
- hold popup IPC until the renderer has loaded and re-assert visibility on
  every show, so a popup hidden once still appears next time
- surface popup renderer console and load failures in the main log

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4.1-flash

.github/workflows/release.yml

@@ -109,6 +109,9 @@ jobs:
           npm run typecheck
           npm run build --workspace=@d3ro/desktop
 
+      - name: Verify Desktop Renderer Bundles
+        run: node scripts/ci/verify-desktop-renderer-bundles.mjs
+
       - name: Build STT Sidecar (local transcription engine)
         run: |
           # Local transcription depends on the faster-whisper sidecar; a release
@@ -189,6 +192,9 @@ jobs:
           npm run typecheck
           npm run build --workspace=@d3ro/desktop
 
+      - name: Verify Desktop Renderer Bundles
+        run: node scripts/ci/verify-desktop-renderer-bundles.mjs
+
       - name: Build STT Sidecar (local transcription engine)
         run: |
           # Local transcription depends on the faster-whisper sidecar; a release