feat(licenses): improve development setup and refactor email handling

- Updated development script in package.json to load environment variables from dotenv.
- Refactored email imports to use named exports for better clarity.
- Removed unused database expiration logic and adjusted license validation to rely on Stripe subscription status.
- Enhanced error logging in webhook processing and improved console output for server status.
- Updated SMTP configuration to use more descriptive environment variable names.
- Removed the expiresAt field from the database schema to streamline license management.

apps/licenses/package.json

@@ -3,7 +3,7 @@
 	"version": "0.0.1",
 	"type": "module",
 	"scripts": {
-		"dev": "PORT=4002 tsx watch src/index.ts",
+		"dev": "PORT=4002 tsx watch -r dotenv/config src/index.ts",
 		"build": "tsc --project tsconfig.json",
 		"start": "node dist/index.js",
 		"typecheck": "tsc --noEmit",