[FEATURE]: Support Storage Settings

[KashiwaByte101]

📝 Feature Description [Please make everyone to understand it]

Support setting the maximum file size and file deletion time interval in settings.

👍 What problem does this feature solve

The current default 15-day deletion period cannot flexibly meet users' storage needs.

👾 What does the proposed API look like

No response

🚑 Any additional information

No response

[FoundDream]

I can contribute to this feature, assign to me :3