Enhance the admin panel by introducing visual overview charts for upload and storage trends, along with status bars for system metrics.
Additionally, implement pagination for the admin logs view, allowing users to navigate through log entries with configurable page sizes. Corresponding CSS styles have been added for the new charts, metrics grid, and pagination controls.
Introduce new admin capabilities to manage uploaded boxes and files:
- Add routes and handlers for editing boxes and deleting individual files.
- Implement `RemoveFileFromBox` in `UploadService` to delete a file's stored objects and remove it from the box (deleting the box if empty).
- Implement `AdminUpdateBox` in `UploadService` to update expiry, download limits, and clear password protection.
- Remove the unused `AdminFiles` handler.
- Add `.claude` to `.gitignore`.
