feat(organize/scan): transfer modes, seeding-safe relocation, inode dedup, incremental scanning

- Organizer: add move/copy/hardlink/symlink transfer modes (default move),
  per-request target_path/transfer_mode overrides, and honor organize.target_dir
  / organize.transfer_mode settings.
- keep_seeding (default on): escalate move->hardlink (cross-device->copy) so the
  qBittorrent source stays in place and continues seeding after organize.
- qBittorrent SetLocation + POST /downloads/relocate to migrate whole torrents
  while keeping them seeding.
- Scanner: FileID (device:inode) hardlink dedup to avoid duplicate recognition
  and double-counted storage; extract single-file ingest.
- Watcher: recursive watch + incremental per-file ingest/remove instead of full
  re-scan; periodic full library scan now gated behind scan.periodic_enabled
  (default off) to reduce disk wear.
- Telegram bot: handle callback_query in polling, declare allowed_updates in
  webhook, answer callbacks.
- Frontend: settings for transfer mode / keep_seeding / periodic scan; organize
  panel target dir + transfer mode overrides.
- Tests for transfer modes, organizer resolution, SetLocation, inode dedup,
  incremental ingest/remove.

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

web/src/api/tools.ts

@@ -3,15 +3,25 @@ import { api } from './client'
 // toolsAPI groups admin-only endpoints that don't fit the other domain
 // modules: organizing media files into the canonical naming layout, and
 // dispatching a test notification through the configured channels.
+// OrganizeOverrides are optional single-request overrides for an organize
+// action. Empty fields fall back to the system settings.
+export interface OrganizeOverrides {
+  target_path?: string
+  transfer_mode?: string
+}
+
 export const toolsAPI = {
-  organizeMedia: (mediaID: string) =>
+  organizeMedia: (mediaID: string, opts?: OrganizeOverrides) =>
     api
-      .post<{ path: string }>(`/admin/media/${mediaID}/organize`)
+      .post<{ path: string }>(`/admin/media/${mediaID}/organize`, opts ?? {})
       .then((r) => r.data),
 
-  organizeLibrary: (libraryID: string) =>
+  organizeLibrary: (libraryID: string, opts?: OrganizeOverrides) =>
     api
-      .post<Record<string, unknown>>(`/admin/libraries/${libraryID}/organize`)
+      .post<Record<string, unknown>>(
+        `/admin/libraries/${libraryID}/organize`,
+        opts ?? {},
+      )
       .then((r) => r.data),
 
   notifyTest: (title: string, body: string) =>