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/dashboard/src/lib/utils/services/upload.ts

@@ -8,7 +8,7 @@ import { classroomio } from './api';
  */
 export async function uploadImage(file: File): Promise<string> {
   try {
-    const response = await classroomio.media.image.upload.$post({
+    const response = await classroomio.media.image.$post({
       form: {
         file: file
       }