- Add reorganize result preview panel on the right side of ReorganizeDialog
- Add preview types: ManualTransferPayload, ManualTransferPreviewSummary, ManualTransferPreviewItem, ManualTransferPreviewData
- Add preview-related locale keys for zh-CN, zh-TW, en-US
- Optimize dialog width, split ratios, and button positions
- Support horizontal scroll for before/after file name columns
- Auto-calculate pagination via ResizeObserver with fixed row height
- Display media info, stats, and season/episode counts in preview header
- Support parallel preview requests with per-item error handling
- Replace setTimeout with nextTick for DOM-dependent operations
