Complete archive listings by walking RAR headers, at low priority

Inspection lists only the entries whose headers are in the first segment
of a first volume. A walk hops from header to header, fetching one segment
per entry and volume, in its own queue (one job per collection worker) on
NNTP connections inspection isn't waiting for. content:walk-archives queues
releases inspected earlier (CONCEPT D40).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/services/ArchiveService.ts

@@ -27,7 +27,8 @@ export interface ArchiveResult {
  */
 class ArchiveService {
   async record(file: any, binary: any, info: RarInfo): Promise<ArchiveResult> {
-    const stored = { ...info, entries: info.entries.slice(0, MAX_ENTRIES).map(({ stored: _s, dataOffset: _d, ...entry }) => entry) }
+    const { next: _next, ...listing } = info
+    const stored = { ...listing, entries: info.entries.slice(0, MAX_ENTRIES).map(({ stored: _s, dataOffset: _d, ...entry }) => entry) }
     await db.from('files').where('id', file.id).update({ archive: JSON.stringify(stored) })
 
     let releaseId = file.release_id ?? binary?.release_id ?? null