Run the title catch-up in its own YouTube lane

media-scrape/src/backfill.ts

@@ -29,8 +29,6 @@ export interface BackfillMember {
     backend: BackendName;
     mode: ScrapeMode;
     pending: number;
-    /** YouTube-like rows still missing a title. */
-    pendingTitles: number;
     cached: number;
     failed: number;
     total: number;
@@ -154,7 +152,6 @@ export class BackfillQueue {
                 backend: meta.backend,
                 mode: meta.mode,
                 pending: 0,
-                pendingTitles: 0,
                 cached: 0,
                 failed: 0,
                 total: 0,
@@ -168,7 +165,6 @@ export class BackfillQueue {
                 try {
                     const counts = store.previewCounts();
                     member.pending = counts.pending;
-                    member.pendingTitles = counts.titlePending;
                     member.cached = counts.cached;
                     member.failed = counts.failed;
                     member.total = counts.total;
@@ -209,10 +205,7 @@ export class BackfillQueue {
         for (const [chatId, group] of groups) {
             // Hide chats that are fully backfilled unless their job did work this session.
             const tracked = this.jobs.get(chatId);
-            const pending = group.members.reduce(
-                (sum, member) => sum + member.pending + member.pendingTitles,
-                0
-            );
+            const pending = group.members.reduce((sum, member) => sum + member.pending, 0);
             if (!tracked && pending === 0) continue;
 
             const perMinute = tracked?.perMinute ?? this.estimatedPerMinute(settings, gaps);
@@ -418,9 +411,7 @@ export class BackfillQueue {
 
         while (!job.stop) {
             const group = this.plan(false).get(job.chatId);
-            const member = group?.members.find(
-                candidate => candidate.pending > 0 || candidate.pendingTitles > 0
-            );
+            const member = group?.members.find(candidate => candidate.pending > 0);
             if (!member) break;
 
             const limit = this.engine.rateLimitStatus();