Refactor hono/app.tsx into route-based directory structure

[Copilot]

Refactored the monolithic hono/app.tsx file by splitting endpoint handlers into separate route files for improved maintainability and clarity.

Changes Made

New Directory Structure:

hono/
├── app.tsx            # Main app setup, imports, and router registration
├── routes/
│   ├── health.ts      # Handles GET /health
│   ├── index.tsx      # Handles GET /
│   └── ws.ts          # Handles GET /ws (WebSocket endpoint)
└── components/
    └── ChatPage.tsx   # (Already exists)

Extracted Routes:

• routes/health.ts - Moved /health endpoint handler that returns service status
• routes/index.tsx - Moved / (root) endpoint handler that serves the ChatPage component
• routes/ws.ts - Moved /ws WebSocket endpoint handler with all WebSocket logic

Updated app.tsx:

• Removed inline route handlers
• Added imports for the new route modules
• Registered routes using app.route() method
• Maintained all existing exports (app, injectWebSocket)

Benefits

• Better Organization: Each route is now in its own focused file
• Improved Maintainability: Easier to locate and modify specific endpoint logic
• Preserved Functionality: All existing behavior remains exactly the same
• Test Compatibility: All existing tests continue to pass without modification

Validation

• ✅ All 6 existing tests pass
• ✅ TypeScript compilation successful
• ✅ Manual testing confirms all endpoints working correctly
• ✅ WebSocket functionality preserved
• ✅ No breaking changes to API or behavior

The refactoring makes the codebase more modular while maintaining backward compatibility and preserving all existing functionality.

Fixes #15.

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[mahata]

@copilot Split app.test.ts into multiple test files and put under routes/ too.

[Copilot]

@copilot Split app.test.ts into multiple test files and put under routes/ too.

Done! Split app.test.ts into route-specific test files under routes/ directory:

• routes/health.test.ts - Health endpoint tests (2 tests)
• routes/index.test.tsx - Root page tests (1 test)
• routes/ws.test.ts - WebSocket endpoint tests (2 tests)
• app.test.ts - Integration tests for 404 handling (1 test)

All 7 tests continue to pass. Commit: 1cae189