Closes P0 #5 from PARTIAL to RESOLVED. Sweeps the remaining 24 pages/api/** handlers that carried the identical scaffolded wildcard-CORS + OPTIONS preflight pattern (Brief 4 cleaned login + register; this finishes the job). Adds a blocking forbidden-cors-headers CI job modeled on forbidden-endpoints to lock the cleanup against future regression. 25 files changed (+29/-261). Local: lint 128 baseline, vitest 21/21, zero CORS matches, YAML valid. CI: Playwright smoke 3/3 in 3.3s against post-removal preview (login/verify flow still works), new forbidden-cors-headers job passes in 4s, all gates green. PR #19 architect-commit ec22b70, implementer-commit a843736.
- Redesigned card display with 2.5:3.5 aspect ratio and image-only view
- Added infinite scroll to replace pagination
- Implemented authentic card back placeholders for MTG, Pokemon, and Lorcana
- Added rarity-based particle effects with tiered intensity (mythic/enchanted/rare/uncommon)
- Enhanced hover details panel with structured card information
- Fixed search functionality with debouncing and Enter key support
- Improved filter system with working TCG, rarity, set, and price filters
- Added favorite system for cards in both hover and detail views
- Updated card detail page with comprehensive metadata and actions
- Fixed API filtering with proper Vercel Postgres implementation
- Added particle animations and rarity glow effects
- Improved overall UX with better visual hierarchy and interactions
