Backend:
- Add get_enabled_features() returning set from ALWRITY_ENABLED_FEATURES
- Update router registry to use 'features' instead of 'profiles'
- Support feature names: podcast, blog-writer, youtube, story-writer, etc
- Update bootstrap gating to use enabled features
- Update PODCAST_ONLY_DEMO_MODE to check new flag first
- Add backwards compatibility with legacy env vars
Frontend:
- Update demoMode.ts to use REACT_APP_ENABLED_FEATURES
- Add getEnabledFeatures() and isFeatureEnabled() utilities
Usage:
ALWRITY_ENABLED_FEATURES=all # All features (default)
ALWRITY_ENABLED_FEATURES=podcast # Podcast only
ALWRITY_ENABLED_FEATURES=podcast,core # Podcast + core features