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/mail/sendEmail.ts

@@ -12,7 +12,7 @@ const sendEmail = (sFetch: typeof fetch) => {
     }[]
   ) => {
     try {
-      const response = await classroomio.mail.send.$post({ json: emailDataArray }, { fetch: sFetch });
+      const response = await classroomio.mail.$post({ json: emailDataArray }, { fetch: sFetch });
 
       if (!response.ok) {
         console.log('Failed to send emails');