chore: remove obsolete files and clean up repository

- Deleted unused files including `AGENTS.md`, `data_transmission_example.py`, `delete.py`, and `main.py` to streamline the project structure.
- Updated `README.md` to reflect the removal of these files and clarify integration details.
- Minor adjustments made to `strings.json` for consistency.

custom_components/JackeryHome/strings.json

@@ -19,4 +19,4 @@
             "single_instance_allowed": "只允许一个此集成的实例"
         }
     }
-}
+}