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>

.claude/settings.local.json

@@ -12,7 +12,9 @@
       "Bash(pkill:*)",
       "Bash(npx serve:*)",
       "Bash(python3:*)",
-      "Bash(git add:*)"
+      "Bash(git add:*)",
+      "Bash(open:*)",
+      "WebFetch(domain:api.syui.ai)"
     ],
     "deny": []
   }