URGENT FIX: Admin form was not properly saving AI provider configuration,
causing 'AI_PROVIDER_TAGS is not configured' error even after setting OpenAI.
Changes:
- admin-settings-form.tsx: Added validation and error handling
- admin-settings.ts: Filter empty values before saving to DB
- setup-openai.ts: Script to initialize OpenAI as default provider
This fixes the critical bug where users couldn't use the app after
configuring OpenAI in the admin interface.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
## Bug Fixes
### Note Card Actions
- Fix broken size change functionality (missing state declaration)
- Implement React 19 useOptimistic for instant UI feedback
- Add startTransition for non-blocking updates
- Ensure smooth animations without page refresh
- All note actions now work: pin, archive, color, size, checklist
### Markdown LaTeX Rendering
- Add remark-math and rehype-katex plugins
- Support inline equations with dollar sign syntax
- Support block equations with double dollar sign syntax
- Import KaTeX CSS for proper styling
- Equations now render correctly instead of showing raw LaTeX
## Technical Details
- Replace undefined currentNote references with optimistic state
- Add optimistic updates before server actions for instant feedback
- Use router.refresh() in transitions for smart cache invalidation
- Install remark-math, rehype-katex, and katex packages
## Testing
- Build passes successfully with no TypeScript errors
- Dev server hot-reloads changes correctly
