added client RA bill wise download report

run.py

@@ -0,0 +1,17 @@
+from dotenv import load_dotenv
+load_dotenv()
+from app import create_app
+from app.services.db_service import db
+import os
+
+app = create_app()
+
+if __name__ == "__main__":
+    with app.app_context():
+        db.create_all() 
+
+    app.run(
+        host=os.getenv("FLASK_HOST"),
+        port=int(os.getenv("FLASK_PORT")),
+        debug=os.getenv("FLASK_DEBUG") == "True"
+    )