Add Scalar UI to frontend. Security audit — CORS allowlist, Zod validation, error sanitization. Deps: bump brace-expansion in /admin. Deps: bump picomatch from 4.0.3 to 4.0.4 in /admin
Features
- Add Scalar UI to frontend
Bug Fixes
- Security audit — CORS allowlist, Zod validation, error sanitization
Miscellaneous Chores
- Deps: bump brace-expansion in /admin
- Deps: bump picomatch from 4.0.3 to 4.0.4 in /admin
- Improve plan usage display on dashboard
Changes to Existing Features
- Add PostHog analytics with cookie consent and auto-tracking
- Add public API with token auth, OpenAPI spec, and Scalar UI
- Move plan selection to dedicated page