feat(files): W5-A2 move/copy via planImport, organize overrides, delete records, download

- /files/move|copy go through planImport's new `transfer` variant (keep names, directory
  expanded to per-file plan) → organization_record + verifyAndImport/executeRecord: per-file
  ledger resumable, fsproxy, cross-volume directory move = per-file copy→verify→delete then
  remove empty source dirs; shared plan store + plan_stale; asset_location follows per file,
  path_binding revised when a whole directory moved (finalizeTransfer); request waits up to
  FILES_TRANSFER_WAIT_SEC, else executed.pending
- /files/organize per-item overrides take effect: season/episodes (domain planOrganize
  overrides), contentUnitId coverage, targetDir (no binding), operation, slotId (satisfied
  after verify); warnings only for inapplicable overrides
- delete/trash/restore write organization_record (action trash|delete|restore, file-level
  results; migration 0026)
- GET /files/download (admin session, nfo/subtitle/image, size cap, streamed, audited)
- GET /files/records?ids|planIds for the organize page
- fs race errors map to 503/404/403/400 instead of 500
- runbook updated

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/domain/src/organize/index.ts

@@ -2,11 +2,13 @@ export {
   type ExcludedFile,
   type ExistingPolicy,
   type ExistingTarget,
+  type FileOverride,
   type OrganizeConflict,
   type OrganizeFileKind,
   type OrganizeInput,
   type OrganizeOperation,
   type OrganizePlan,
+  overrideFor,
   type PlannedAction,
   type PlannedFile,
   type Precondition,

packages/domain/src/organize/plan.ts

@@ -54,6 +54,32 @@ export interface OrganizeInput {
   parse?: ParseOptions;
   /** 随行字幕里此语言加 .default 标记(对照 MP DEFAULT_SUB);不设不加 */
   defaultSubtitleLang?: DefaultSubtitleLang;
+  /**
+   * 逐文件季/集覆写(人工确认,优先于文件名解析):键为源文件路径或其所在目录(最长前缀生效)。
+   * 只影响剧集的季目录选择与命名;电影忽略。
+   */
+  overrides?: Readonly<Record<string, FileOverride>>;
+}
+
+export interface FileOverride {
+  season?: number;
+  episodes?: { start: number; end: number };
+}
+
+/** 源路径的覆写:精确命中优先,否则取最长的目录前缀 */
+export function overrideFor<T extends FileOverride>(
+  overrides: Readonly<Record<string, T>> | undefined,
+  path: string,
+): T | undefined {
+  if (!overrides) return undefined;
+  const exact = overrides[path];
+  if (exact) return exact;
+  let best: { len: number; o: T } | undefined;
+  for (const [k, o] of Object.entries(overrides)) {
+    const dir = k.replace(/\/+$/, "");
+    if (path.startsWith(`${dir}/`) && (!best || dir.length > best.len)) best = { len: dir.length, o };
+  }
+  return best?.o;
 }
 
 export type PlannedAction = "transfer" | "replace" | "skip" | "hold";
@@ -195,6 +221,12 @@ export function planOrganize(input: OrganizeInput): OrganizePlan {
       continue;
     }
     const parsed = parseReleasePath(segmentsFor(f.path, input.sourceRoot), input.parse ?? {});
+    const ov = input.mediaType === "tv" ? overrideFor(input.overrides, f.path) : undefined;
+    if (ov?.season !== undefined) parsed.season = ov.season;
+    if (ov?.episodes) {
+      parsed.episodes = ov.episodes;
+      delete parsed.airDate;
+    }
     if (parsed.contentType === "extra" && parsed.evidence.includes("dir:extras")) {
       excluded.push({ src: f.path, kind, reason: "extra_content" });
       continue;