chore: Archive all pending OpenSpec proposals

Force archive the following proposals:
- add-audio-device-selector (complete)
- add-embedded-backend-packaging (19/26 tasks)
- add-flexible-deployment-options (20/21 tasks)

New specs created:
- audio-device-management (7 requirements)
- embedded-backend (8 requirements)

Updated specs:
- transcription (+2 requirements for model download progress)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

openspec/changes/archive/2025-12-22-add-embedded-backend-packaging/tasks.md

@@ -0,0 +1,39 @@
+# Tasks: Add Embedded Backend Packaging
+
+## 1. Backend Packaging Infrastructure
+- [x] 1.1 Create `backend/run_server.py` - Entry point that loads config and starts uvicorn
+- [x] 1.2 Create `backend/build.py` - PyInstaller build script with hidden imports
+- [x] 1.3 Modify `backend/app/config.py` - Support frozen executable path detection
+- [ ] 1.4 Test backend executable runs standalone on Windows
+
+## 2. Electron Backend Sidecar Management
+- [x] 2.1 Add `backendProcess` and `backendReady` state variables in `main.js`
+- [x] 2.2 Implement `startBackendSidecar()` function
+- [x] 2.3 Implement `waitForBackendReady()` health check polling
+- [x] 2.4 Modify `app.whenReady()` to start backend before window
+- [x] 2.5 Modify window close handler to terminate backend process
+- [x] 2.6 Add `get-backend-status` IPC handler
+
+## 3. Configuration Schema Extension
+- [x] 3.1 Extend `client/config.json` with `backend` section
+- [x] 3.2 Modify `client/src/preload.js` to expose backend status API
+- [x] 3.3 Add configuration loading in backend entry point
+- [ ] 3.4 Document configuration options in DEPLOYMENT.md
+
+## 4. Build Script Integration
+- [x] 4.1 Modify `scripts/build-client.bat` to build backend sidecar
+- [ ] 4.2 Modify `scripts/build-all.ps1` to build backend sidecar
+- [x] 4.3 Update `client/package.json` extraResources for backend
+- [x] 4.4 Add `--embedded-backend` flag to build scripts
+
+## 5. Model Download Progress Display
+- [x] 5.1 Modify `sidecar/transcriber.py` to emit download progress JSON
+- [x] 5.2 Add progress event forwarding in `main.js`
+- [x] 5.3 Expose `onModelDownloadProgress` in `preload.js`
+- [x] 5.4 Update `meeting-detail.html` to display download progress
+
+## 6. Testing and Documentation
+- [ ] 6.1 Test embedded mode on clean Windows machine
+- [ ] 6.2 Test backward compatibility (embedded: false)
+- [ ] 6.3 Test model download progress display
+- [ ] 6.4 Update DEPLOYMENT.md with all-in-one deployment instructions