Inspection backlog in Postgres; BullMQ gets a working set

5.4M waiting inspection jobs took 3.3 GB of Redis and most of its single
thread. Producers now add file ids to inspection_queue; index-scheduler
feeds up to INSPECTION_FEED_MAX (50k) into BullMQ. inspection:from-redis
moves the existing backlog over once.

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

commands/ContentBackfill.ts

@@ -4,6 +4,7 @@ import db from '@adonisjs/lucid/services/db'
 import QueueService from '#services/QueueService'
 import ContentService from '#services/ContentService'
 import { isArchiveStart } from '#lib/content/index'
+import InspectionQueue, { INSPECTION_PRIORITY } from '#services/InspectionQueue'
 
 const BATCH = 1000
 
@@ -71,19 +72,15 @@ export default class ContentBackfill extends BaseCommand {
         const jobs = files
           .filter((f) => (this.archives ? isArchiveStart(f.filename) : this.sfv || this.nicovideo || ContentService.isCandidate(f.filename)))
           .slice(0, this.limit ? this.limit - queued : undefined)
-          .map((f) => ({
-            name: 'process-collection',
-            data: { fileId: Number(f.id) },
-            // A new id per run: BullMQ ignores an add() for an id it still knows.
-            // Targeted backfills go ahead of whatever is waiting.
-            opts: {
-              jobId: `content-${f.id}-${Date.now()}`,
-              lifo: this.archiveNzbs || this.sevenZip || this.archives || this.sfv,
-              // niconico captures are many (~190k) and only cosmetic: behind everything else.
-              ...(this.nicovideo ? { priority: 10 } : {}),
-            },
-          }))
-        if (jobs.length > 0) await QueueService.collectionQueue.addBulk(jobs)
+          .map((f) => Number(f.id))
+        // Into the inspection backlog (InspectionQueue): targeted backfills go ahead of what's waiting;
+        // niconico captures are many (~190k) and only cosmetic, so behind everything else.
+        const priority = this.nicovideo
+          ? INSPECTION_PRIORITY.low
+          : this.archiveNzbs || this.sevenZip || this.archives || this.sfv
+            ? INSPECTION_PRIORITY.targeted
+            : INSPECTION_PRIORITY.normal
+        if (jobs.length > 0) await InspectionQueue.add(jobs, priority)
         queued += jobs.length
       }
       this.logger.info(`Queued ${queued} files for content inspection.`)