feat: add Supabase auth + 5 new pipeline stages

feat: Supabase auth + Razorpay billing + fix API double-URL bug

feat: connect frontend to HuggingFace Space backend

feat(core): integrate core modules, update UI and docs

fix: Add ngrok bypass header and safe fallbacks to prevent white screen crashes

fix: Remove unused vars to fix Vercel strict TS build

feat: universal chip support, claude theme, and SFT logging export