Updated starter pack

docs/roles/backend-developer-dima.md

@@ -163,6 +163,15 @@ Notice the improvements:
 - Uses helper functions to reduce code duplication
 - Has clear error handling
 
+## Database Configuration
+
+The application should connect to the MongoDB database using the following connection string:
+```python
+MONGO_URI = "mongodb://ai6s3:Student123!@localhost:27017/student_db"
+```
+
+This connection string should be set in the application's configuration file or environment variables.
+
 ✅ DIMA'S COMPLETION CHECKLIST
 ☐ Understand the prize system structure
 ☐ Review game session initialization