Add account deletion scheduler and comprehensive tests

- Implemented account deletion scheduler in `account_deletion_scheduler.py` to manage user deletions based on a defined threshold.
- Added logging for deletion processes, including success and error messages.
- Created tests for deletion logic, including edge cases, retry logic, and integration tests to ensure complete deletion workflows.
- Ensured that deletion attempts are tracked and that users are marked for manual intervention after exceeding maximum attempts.
- Implemented functionality to check for interrupted deletions on application startup and retry them.

backend/main.py

@@ -4,6 +4,7 @@ import sys
 from flask import Flask, request, jsonify
 from flask_cors import CORS
 
+from api.admin_api import admin_api
 from api.auth_api import auth_api
 from api.child_api import child_api
 from api.image_api import image_api
@@ -15,6 +16,7 @@ from config.version import get_full_version
 from db.default import initializeImages, createDefaultTasks, createDefaultRewards
 from events.broadcaster import Broadcaster
 from events.sse import sse_response_for_user, send_to_user
+from utils.account_deletion_scheduler import start_deletion_scheduler
 
 # Configure logging once at application startup
 logging.basicConfig(
@@ -28,6 +30,7 @@ logger = logging.getLogger(__name__)
 
 app = Flask(__name__)
 #CORS(app, resources={r"/api/*": {"origins": ["http://localhost:3000", "http://localhost:5173"]}})
+app.register_blueprint(admin_api)
 app.register_blueprint(child_api)
 app.register_blueprint(reward_api)
 app.register_blueprint(task_api)
@@ -83,6 +86,7 @@ initializeImages()
 createDefaultTasks()
 createDefaultRewards()
 start_background_threads()
+start_deletion_scheduler()
 
 if __name__ == '__main__':
     app.run(debug=False, host='0.0.0.0', port=5000, threaded=True)