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

.forgejo/workflows/release.yml

@@ -62,6 +62,7 @@ jobs:
             throw "로컬 개발 인증서는 production 서명 identity가 아닙니다."
           }
           npm run build --workspace=@d3ro/desktop
+          node scripts/ci/verify-desktop-renderer-bundles.mjs
           Push-Location apps/desktop
           npx electron-builder --win --x64 --config electron-builder.yml --publish never
           node scripts/ci/verify-native-abi.mjs