Yu-QX/KoiPilot

AI Summary: Design a visual identity (VI) for the KoiPilot application, specifically creating a visually appealing and animated koi fish character to serve as the application's default desktop pet. The design should integrate seamlessly into a desktop environment, featuring animations triggered by specific events, and maintain a natural and vivid appearance.

AI Summary: Implement file permission checks in the KoiPilot file manager. This involves adding a permission check to the `FileOperator` class, allowing users to configure permissions, and saving those configurations. The goal is to prevent unauthorized file modifications.