Content inspection and archive walks on seeding nodes (relay)

Inspection is split into prepare (database), probe (lib/content/probe:
downloads, decoding and parsing, no database) and apply (database).
worker:collection runs all three; seed:node with SEED_INSPECTORS leases
jobs from the same queues through the seed API (BullMQ manual leases),
fetches articles through the seed API and posts the probes back.

A node now needs only SEED_URL and SEED_TOKEN: the settings the app
requires but a node never uses get placeholders for seed:node.

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

app/services/ArchiveService.ts

@@ -1,12 +1,7 @@
-import { execFile } from 'node:child_process'
-import { mkdtemp, rm, writeFile } from 'node:fs/promises'
-import { tmpdir } from 'node:os'
-import path from 'node:path'
-import { promisify } from 'node:util'
 import db from '@adonisjs/lucid/services/db'
 import logger from '@adonisjs/core/services/logger'
 import IngestService from '#services/IngestService'
-import { storedEntryData, type RarEntry, type RarInfo } from '#lib/rar/index'
+import type { RarInfo } from '#lib/rar/index'
 import { fileStem, isGenericName, rarReleaseIdentity } from '#lib/release/index'
 
 /** Stored per file and release; a listing of thousands of files is not useful. */
@@ -71,43 +66,6 @@ class ArchiveService {
   }
 }
 
-const run = promisify(execFile)
-
-/** Tools that print one archive entry to stdout, tried in order. */
-const EXTRACTORS: [string, (archive: string, entry: string) => string[]][] = [
-  ['bsdtar', (archive, entry) => ['-xOf', archive, entry]],
-  ['unrar', (archive, entry) => ['p', '-inul', '-p-', '--', archive, entry]],
-]
-
-/**
- * The unpacked data of one entry of a complete (single-volume) archive:
- * copied out when stored, else unpacked with bsdtar (libarchive, in the
- * Docker image) or unrar. Null when that is not possible.
- */
-export async function extractEntry(archive: Buffer, entry: RarEntry, maxBytes = 64 * 1024 * 1024): Promise<Buffer | null> {
-  const stored = storedEntryData(archive, entry)
-  if (stored) return stored
-  if (entry.encrypted || entry.directory || entry.splitBefore || entry.splitAfter) return null
-  if (entry.size !== null && entry.size > maxBytes) return null
-
-  const dir = await mkdtemp(path.join(tmpdir(), 'rar-'))
-  try {
-    const file = path.join(dir, 'archive.rar')
-    await writeFile(file, archive)
-    for (const [tool, args] of EXTRACTORS) {
-      try {
-        const { stdout } = await run(tool, args(file, entry.name), { encoding: 'buffer', maxBuffer: maxBytes, timeout: 60_000 })
-        if (stdout.length > 0) return stdout
-      } catch (error: any) {
-        if (error.code !== 'ENOENT') logger.warn(`${tool} could not extract "${entry.name}": ${error.message}`)
-      }
-    }
-    return null
-  } finally {
-    await rm(dir, { recursive: true, force: true })
-  }
-}
-
 /**
  * A release name from an archive listing: the top-level directory shared by
  * all entries when it reads like a release name, otherwise the stem of the