* feat(meta): Added a SafePassword field
- Added the SafePassword field to meta.go
- Revised the field format to align with the code style
- The SafePassword field is used to supplement the extended functionality
* feat(driver): Added support for safe unlocking logic
- Added safe file unlocking logic in `driver.go`, returning an error if unlocking fails.
- Introduced the `safeBoxUnlocked` variable of type `sync.Map` to record the IDs of unlocked files.
- Enhanced error handling logic to automatically attempt to unlock safe files and re-retrieve the file list.
- Added the `IsLock` field to file types in `types.go` to identify whether they are safe files.
- Added a constant definition for the `SafeBoxUnlock` interface address in `util.go`.
- Added the `unlockSafeBox` method to unlock a safe with a specified file ID via the API.
- Optimized the file retrieval logic to automatically call the unlock method when the safe is locked.
* Refactor (driver): Optimize lock field type
- Changed the `IsLock` field type from `int` to `bool` for better semantics.
- Updated the check logic to use direct Boolean comparisons to improve code readability and accuracy.
千石