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/brands/forumbee.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! 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="M5.8 309.7C2 292.7 0 275.5 0 258.3 0 135 99.8 35 223.1 35c16.6 0 33.3 2 49.3 5.5C149 87.5 51.9 186 5.8 309.7zm392.9-189.2C385 103 369 87.8 350.9 75.2c-149.6 44.3-266.3 162.1-309.7 312 12.5 18.1 28 35.6 45.2 49 43.1-151.3 161.2-271.7 312.3-315.7zm15.8 252.7c15.2-25.1 25.4-53.7 29.5-82.8-79.4 42.9-145 110.6-187.6 190.3 30-4.4 58.9-15.3 84.6-31.3 35 13.1 70.9 24.3 107 33.6-9.3-36.5-20.4-74.5-33.5-109.8zm29.7-145.5c-2.6-19.5-7.9-38.7-15.8-56.8C290.5 216.7 182 327.5 137.1 466c18.1 7.6 37 12.5 56.6 15.2C240 367.1 330.5 274.4 444.2 227.7z"/></svg>