- Fix voice clone preview saved as .wav regardless of actual format (MP3/WebM
content from WaveSpeed was saved with .wav extension causing NotSupportedError)
- Add detect_audio_format() and ensure_audio_extension() to media_utils
- Fix assets_serving.py: use storage_paths for root resolution, add proper
MIME types to FileResponse, add auth via query token for <audio> elements
- Fix assets_serving.py: add path traversal security check
- Fix step4_asset_routes.py: use get_user_workspace() instead of WORKSPACE_DIR,
detect actual audio format before saving preview
- Fix get_db() in database.py: raise HTTPException(401) instead of raw Exception,
catch engine creation failures with HTTPException(503)
- Fix avatar.py: add auth error handling, diagnostic logging for path resolution,
graceful DB save degradation
- Voice clone integration: When user selects voice clone in Write phase,
backend uses their uploaded voice sample + scene script text to generate
audio via qwen3/minimax/cosyvoice voice clone APIs
- Multi-tenant workspace storage: All podcast assets (audio, video, images,
charts) now use workspace-specific directories per user
- Chart preview improvements: Card-based B-Roll charts UI with thumbnails,
takeaway text, and action buttons; public endpoint for image serving
- Voice clone caching: In-memory LRU cache for voice samples (avoids
re-downloading per scene); frontend caches voice clone metadata
- Thread pool for voice clone: Audio generation uses ThreadPoolExecutor to
avoid blocking the FastAPI event loop
- Auto-detect voice clone IDs (vc_*, MY_VOICE_CLONE) to route correctly
- DB fallback for voice sample URL: Fetches from ContentAsset if not passed
- Fixed API URL resolution for chart previews
- Fixed GlassyCard DOM warnings for motion props
- Fixed ScriptGenerationProgressView syntax error
- Fixed usePodcastWorkflow scriptData reference
- Fix database session handling in main_image_editing.py to use proper generator handling
- Add graceful handling of validation errors in podcast-only mode
- Add better error messages when WAVESPEED_API_KEY or HF_TOKEN is missing
- Add specific HTTP 503 error for configuration issues
- Add ALWRITY_SKIP_IMAGE_EDITING_VALIDATION env var to bypass validation in dev
