chore: move backend to hono + typescript (#558)

* feat: setup secure presigned uploads and downloads

* clean up

* update lock

* Get presigned url finally working

* 557: Migrate backend to hono + ts

* chore: update Dockerfile and package.json for backend configuration

* add dev command

* remove unused packages

* Enhance backend API and frontend components for course management

- Updated CORS configuration in the backend to allow specific methods and headers.
- Refactored lesson download endpoint to use a new route for PDF downloads.
- Removed unused certificate download functionality from the lesson router.
- Updated frontend components to reflect changes in API endpoints and improve video upload functionality.
- Introduced new video upload component and adjusted video handling in lesson materials.
- Cleaned up unnecessary imports and optimized component structure for better performance.

* PR cleanups

* Enhance email configuration by adding SMTP_SENDER environment variable

- Updated docker-compose.yaml to include SMTP_SENDER.
- Modified Dockerfile to accept SMTP_SENDER as an argument.
- Updated environment schema in env.ts to define SMTP_SENDER as optional.
- Adjusted mail service to use SMTP_SENDER for the email 'from' field.
- Updated documentation to reflect the new SMTP_SENDER variable.

* Remove debug log statement from sendEmail function

---------

Co-authored-by: Iniubong Obonguko <[email protected]>

apps/backend/src/middlewares/auth.ts

@@ -0,0 +1,44 @@
+import { Context, Next } from 'hono';
+
+import { validateUser } from '$src/utils/auth/validate-user';
+
+export const authMiddleware = async (c: Context, next: Next) => {
+  try {
+    const authHeader = c.req.header('authorization');
+
+    if (!authHeader) {
+      return c.json(
+        {
+          success: false,
+          message: 'No authorization header provided'
+        },
+        401
+      );
+    }
+
+    // Extract the token from "Bearer <token>"
+    const token = authHeader.split(' ')[1];
+
+    if (!token) {
+      return c.json(
+        {
+          success: false,
+          message: 'Invalid authorization header format'
+        },
+        401
+      );
+    }
+
+    const user = await validateUser(token);
+    c.set('user', user); // Attach the user to the context
+    await next();
+  } catch (error) {
+    return c.json(
+      {
+        success: false,
+        message: 'Unauthorized'
+      },
+      401
+    );
+  }
+};