feat: add reorganize preview panel and optimize dialog layout

- 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

src/api/types.ts

@@ -1311,6 +1311,57 @@ export interface TransferForm {
   library_category_folder?: boolean
   // 剧集组编号
   episode_group?: string
+  // 预览模式
+  preview?: boolean
+}
+
+// 手动整理请求
+export interface ManualTransferPayload extends TransferForm {}
+
+// 手动整理预览统计
+export interface ManualTransferPreviewSummary {
+  // 总数
+  total: number
+  // 成功数
+  success: number
+  // 失败数
+  failed: number
+}
+
+// 手动整理预览项
+export interface ManualTransferPreviewItem {
+  // 原始路径
+  source?: string
+  // 目标路径
+  target?: string
+  // 目标目录
+  target_dir?: string
+  // 是否成功
+  success?: boolean
+  // 提示信息
+  message?: string
+  // 媒体类型
+  type?: string
+  // 媒体标题
+  title?: string
+  // 季
+  season?: number | string
+  // 开始集
+  episode?: number | string
+  // 结束集
+  episode_end?: number | string
+  // Part
+  part?: string
+}
+
+// 手动整理预览数据
+export interface ManualTransferPreviewData {
+  // 统计信息
+  summary: ManualTransferPreviewSummary
+  // 预览结果
+  items: ManualTransferPreviewItem[]
+  // 额外消息
+  message?: string
 }
 
 // 整理队列

src/locales/en-US.ts

@@ -2494,6 +2494,31 @@ export default {
       scrapeHint: 'Automatically scrape metadata after organization',
       fromHistoryOption: 'Reuse Historical Recognition Info',
       fromHistoryHint: 'Use media info already recognized in historical organization records',
+      previewTitle: 'Preview Result',
+      previewSubtitle: 'The right panel shows the expected organization result without changing files.',
+      previewResult: 'Preview Result',
+      previewLoading: 'Generating preview result...',
+      previewRequestFailed: 'Preview request failed',
+      previewTotal: 'Total {count}',
+      previewSuccess: 'Success {count}',
+      previewFailed: 'Failed {count}',
+      previewSourcePath: 'Source Path',
+      previewTargetPath: 'Target Path',
+      previewMediaInfo: 'Media',
+      previewMediaName: 'Name',
+      previewMediaType: 'Type',
+      previewSeasonInfo: 'Season',
+      previewSeasonLabel: 'Season',
+      previewEpisodeCount: 'Episodes',
+      previewAfterColumn: 'After',
+      previewBeforeColumn: 'Before',
+      previewFileNameColumn: 'Filename',
+      previewEmptyTitle: 'No preview yet',
+      previewEmptyDescription: 'Click "Preview Result" below to inspect target paths and failure reasons here.',
+      noPreviewData: 'No preview data',
+      noFailedPreviewData: 'No failed items',
+      copySuccess: 'Path copied',
+      copyFailed: 'Copy failed',
       addToQueue: 'Add to Organization Queue',
       reorganizeNow: 'Organize Now',
       auto: 'Auto',

src/locales/zh-CN.ts

@@ -2449,6 +2449,31 @@ export default {
       scrapeHint: '整理完成后自动刮削元数据',
       fromHistoryOption: '复用历史识别信息',
       fromHistoryHint: '使用历史整理记录中已识别的媒体信息',
+      previewTitle: '整理结果预览',
+      previewSubtitle: '右侧显示本次整理的预计入库结果，不会实际改动文件',
+      previewResult: '预览整理结果',
+      previewLoading: '正在生成预览结果...',
+      previewRequestFailed: '预览请求失败',
+      previewTotal: '总数 {count}',
+      previewSuccess: '成功 {count}',
+      previewFailed: '失败 {count}',
+      previewSourcePath: '原始路径',
+      previewTargetPath: '目的路径',
+      previewMediaInfo: '媒体信息',
+      previewMediaName: '名称',
+      previewMediaType: '类型',
+      previewSeasonInfo: '季信息',
+      previewSeasonLabel: '季',
+      previewEpisodeCount: '总集数',
+      previewAfterColumn: '整理后',
+      previewBeforeColumn: '整理前',
+      previewFileNameColumn: '文件名',
+      previewEmptyTitle: '尚未生成预览',
+      previewEmptyDescription: '点击"预览整理结果"按钮后，在这里查看整理结果预览。',
+      noPreviewData: '暂无预览结果',
+      noFailedPreviewData: '当前没有失败项',
+      copySuccess: '路径已复制',
+      copyFailed: '复制失败',
       addToQueue: '加入整理队列',
       reorganizeNow: '立即整理',
       auto: '自动',

src/locales/zh-TW.ts

@@ -2451,6 +2451,31 @@ export default {
       scrapeHint: '整理完成後自動刮削元數據',
       fromHistoryOption: '復用歷史識別資訊',
       fromHistoryHint: '使用歷史整理記錄中已識別的媒體資訊',
+      previewTitle: '整理結果預覽',
+      previewSubtitle: '右側顯示本次整理的預計入庫結果，不會實際改動文件',
+      previewResult: '預覽整理結果',
+      previewLoading: '正在生成預覽結果...',
+      previewRequestFailed: '預覽請求失敗',
+      previewTotal: '總數 {count}',
+      previewSuccess: '成功 {count}',
+      previewFailed: '失敗 {count}',
+      previewSourcePath: '原始路徑',
+      previewTargetPath: '目的路徑',
+      previewMediaInfo: '媒體資訊',
+      previewMediaName: '名稱',
+      previewMediaType: '類型',
+      previewSeasonInfo: '季資訊',
+      previewSeasonLabel: '季',
+      previewEpisodeCount: '總集數',
+      previewAfterColumn: '整理後',
+      previewBeforeColumn: '整理前',
+      previewFileNameColumn: '文件名',
+      previewEmptyTitle: '尚未生成預覽',
+      previewEmptyDescription: '點擊下方「預覽整理結果」按鈕後，在這裡查看目標路徑和失敗原因。',
+      noPreviewData: '暫無預覽結果',
+      noFailedPreviewData: '目前沒有失敗項',
+      copySuccess: '路徑已複製',
+      copyFailed: '複製失敗',
       addToQueue: '加入整理隊列',
       reorganizeNow: '立即整理',
       auto: '自動',