- Remove remote translation providers (Google Cloud Translation, OpenAI,
Anthropic): translation-providers.js is now a local-only shim and the
overlays translate through the bundled Mozilla Bergamot worker only.
- Remove Google Cloud TTS (ttskey/googlettskey parameters and the speak()
branch); native browser TTS plus opt-in ElevenLabs/Speechify remain.
- worker.js loads only the bundled /models directory and no longer falls
back to the remote model proxy.
- Update translation-guide.html, README.md, CLAUDE.md and
overlay_enhanced_readme.md for the local-only workflow.
- Sync the caption-local browser bundle (relay defaults, Firefox
resampling, session token, favicon, CSP).