Optimize moderation logging: fix duplicate collisions, auto-refresh streamer OAuth tokens, and implement IRC keep-alive timeouts. Add unit tests.

fix: add pagination to unpaginated Supabase queries to bypass 1000 row limit

fix: polyfill WebSocket for Supabase client on Node.js 20 and add Hugging Face metadata

feat: prepare transition to decoupled hosting (Render + Netlify + Supabase)