Complete React migration improvements and fixes

- Fix button styling inconsistency for 'did' button using proper CSS reset
- Replace Font Awesome spinners with yellow color (#fff700) for consistency
- Implement holographic card effects for special status cards (yui, first, etc.)
- Add cached user data loading from /json/users.json for faster initial load
- Fix loading states to show spinners instead of "User not found" messages
- Clean up debug console logs for production readiness
- Add proper error handling for API calls
- Update CSS imports to use local files from /pkg/ directory

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

public/pkg/font-awesome/svgs/solid/truck-ramp-box.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512"><!--! Font Awesome Free 6.5.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc. --><path d="M640 0V400c0 61.9-50.1 112-112 112c-61 0-110.5-48.7-112-109.3L48.4 502.9c-17.1 4.6-34.6-5.4-39.3-22.5s5.4-34.6 22.5-39.3L352 353.8V64c0-35.3 28.7-64 64-64H640zM576 400a48 48 0 1 0 -96 0 48 48 0 1 0 96 0zM23.1 207.7c-4.6-17.1 5.6-34.6 22.6-39.2l46.4-12.4 20.7 77.3c2.3 8.5 11.1 13.6 19.6 11.3l30.9-8.3c8.5-2.3 13.6-11.1 11.3-19.6l-20.7-77.3 46.4-12.4c17.1-4.6 34.6 5.6 39.2 22.6l41.4 154.5c4.6 17.1-5.6 34.6-22.6 39.2L103.7 384.9c-17.1 4.6-34.6-5.6-39.2-22.6L23.1 207.7z"/></svg>