feat: enhance API route naming conventions and structure

- Added comprehensive guidelines for API route naming and structure in `ROUTE_NAMING_BEST_PRACTICES.md`.
- Updated `ARCHITECHTURE.md` to reference the new best practices document.
- Refactored course-related routes to follow new naming conventions, including changes to endpoint paths and validation schemas.
- Removed the deprecated course clone route and integrated cloning functionality directly into the course routes.
- Adjusted various API methods to ensure consistent usage of HTTP methods and parameter structures across the application.

apps/api/src/routes/account/account.ts

@@ -28,7 +28,7 @@ export const accountRouter = new Hono()
       return handleError(c, error, 'Failed to fetch account data');
     }
   })
-  .put('/user', authMiddleware, zValidator('json', ZUpdateProfile), async (c) => {
+  .put('/profile', authMiddleware, zValidator('json', ZUpdateProfile), async (c) => {
     const user = c.get('user');
 
     try {