Refactor backend and add registry build workflow

application.py

@@ -0,0 +1,18 @@
+"""Flask application factory."""
+
+from flask import Flask
+from flask_cors import CORS
+
+from database_service import check_and_fix_database_schema, init_database
+from routes import register_routes
+from runtime_config import ALLOWED_ORIGINS
+
+
+def create_app() -> Flask:
+    """Create the configured HTTP application."""
+    init_database()
+    check_and_fix_database_schema()
+    application = Flask(__name__)
+    CORS(application, resources={r"/api/*": {"origins": list(ALLOWED_ORIGINS)}})
+    register_routes(application)
+    return application