fix(queue): remove the dead {search-queue} — producers with no consumer (#379)

The {search-queue} BullMQ queue had producers on every page/space/workspace change
but NO consumer/@Processor — it lives in Docmost's EE edition (external search
drivers), never in this fork. Search works independently via the pages tsvector DB
trigger; the queue was pure dead weight, growing forever (1902 stuck jobs in Redis,
the first real hit of the #355 queue-growing alert — which fired correctly).

Remove the plumbing:
- the 3 producers: drop @InjectQueue(SEARCH_QUEUE) + every searchQueue.add(...) from
  page/space/workspace.listener.ts (and the isTypesense() gate that only wrapped the
  search enqueue). page.listener.handlePageUpdated did ONLY the search enqueue, so its
  @OnEvent(PAGE_UPDATED) handler is removed; the other handlers keep their aiQueue.add.
- the registration (queue.module.ts) and the metrics injection + 'search' depth-metric
  entry (metrics-bull.service.ts).
- the constants: QueueName.SEARCH_QUEUE + the 6 unused SEARCH_INDEX_* QueueJob members
  (grep-confirmed unreferenced). Shared QueueJob members (PAGE_*, SPACE_DELETED,
  WORKSPACE_DELETED — used by the AI queue / embedding/history/notification processors)
  are kept.

Search (tsvector trigger, search.service) and the PAGE_UPDATED websocket listener are
untouched. Verified: apps/server tsc --noEmit 0 errors; 6 spec suites / 52 tests green.

Ops (maintainer, out of code scope): one-time Redis cleanup
`redis-cli --scan --pattern "bull:{search-queue}:*" | xargs -r redis-cli del`, then
confirm bullmq_queue_depth{queue="search"} stays 0 (the metric no longer injects it).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/server/src/database/listeners/page.listener.ts

@@ -4,7 +4,6 @@ import { EventName } from '../../common/events/event.contants';
 import { InjectQueue } from '@nestjs/bullmq';
 import { QueueJob, QueueName } from '../../integrations/queue/constants';
 import { Queue } from 'bullmq';
-import { EnvironmentService } from '../../integrations/environment/environment.service';
 
 /**
  * Thin snapshot of a page node carried inside domain events so the WebSocket
@@ -112,48 +111,24 @@ export class PageListener {
   private readonly logger = new Logger(PageListener.name);
 
   constructor(
-    private readonly environmentService: EnvironmentService,
-    @InjectQueue(QueueName.SEARCH_QUEUE) private searchQueue: Queue,
     @InjectQueue(QueueName.AI_QUEUE) private aiQueue: Queue,
   ) {}
 
   @OnEvent(EventName.PAGE_CREATED)
   async handlePageCreated(event: PageEvent) {
     const { pageIds, workspaceId } = event;
-    if (this.isTypesense()) {
-      await this.searchQueue.add(QueueJob.PAGE_CREATED, {
-        pageIds,
-      });
-    }
-
     await this.aiQueue.add(QueueJob.PAGE_CREATED, { pageIds, workspaceId });
   }
 
-  @OnEvent(EventName.PAGE_UPDATED)
-  async handlePageUpdated(event: PageEvent) {
-    const { pageIds } = event;
-
-    await this.searchQueue.add(QueueJob.PAGE_UPDATED, { pageIds });
-  }
-
   @OnEvent(EventName.PAGE_DELETED)
   async handlePageDeleted(event: PageEvent) {
     const { pageIds, workspaceId } = event;
-    if (this.isTypesense()) {
-      await this.searchQueue.add(QueueJob.PAGE_DELETED, { pageIds });
-    }
-
     await this.aiQueue.add(QueueJob.PAGE_DELETED, { pageIds, workspaceId });
   }
 
   @OnEvent(EventName.PAGE_SOFT_DELETED)
   async handlePageSoftDeleted(event: PageEvent) {
     const { pageIds, workspaceId } = event;
-
-    if (this.isTypesense()) {
-      await this.searchQueue.add(QueueJob.PAGE_SOFT_DELETED, { pageIds });
-    }
-
     await this.aiQueue.add(QueueJob.PAGE_SOFT_DELETED, {
       pageIds,
       workspaceId,
@@ -163,14 +138,6 @@ export class PageListener {
   @OnEvent(EventName.PAGE_RESTORED)
   async handlePageRestored(event: PageEvent) {
     const { pageIds, workspaceId } = event;
-    if (this.isTypesense()) {
-      await this.searchQueue.add(QueueJob.PAGE_RESTORED, { pageIds });
-    }
-
     await this.aiQueue.add(QueueJob.PAGE_RESTORED, { pageIds, workspaceId });
   }
-
-  isTypesense(): boolean {
-    return this.environmentService.getSearchDriver() === 'typesense';
-  }
 }

apps/server/src/database/listeners/space.listener.ts

@@ -4,7 +4,6 @@ import { EventName } from '../../common/events/event.contants';
 import { InjectQueue } from '@nestjs/bullmq';
 import { QueueJob, QueueName } from '../../integrations/queue/constants';
 import { Queue } from 'bullmq';
-import { EnvironmentService } from '../../integrations/environment/environment.service';
 
 export class SpaceEvent {
   spaceId: string;
@@ -15,22 +14,12 @@ export class SpaceListener {
   private readonly logger = new Logger(SpaceListener.name);
 
   constructor(
-    private readonly environmentService: EnvironmentService,
-    @InjectQueue(QueueName.SEARCH_QUEUE) private searchQueue: Queue,
     @InjectQueue(QueueName.AI_QUEUE) private aiQueue: Queue,
   ) {}
 
   @OnEvent(EventName.SPACE_DELETED)
   async handleSpaceDeleted(event: SpaceEvent) {
     const { spaceId } = event;
-    if (this.isTypesense()) {
-      await this.searchQueue.add(QueueJob.SPACE_DELETED, { spaceId });
-    }
-
     await this.aiQueue.add(QueueJob.SPACE_DELETED, { spaceId });
   }
-
-  isTypesense(): boolean {
-    return this.environmentService.getSearchDriver() === 'typesense';
-  }
 }

apps/server/src/database/listeners/workspace.listener.ts

@@ -4,7 +4,6 @@ import { EventName } from '../../common/events/event.contants';
 import { InjectQueue } from '@nestjs/bullmq';
 import { QueueJob, QueueName } from '../../integrations/queue/constants';
 import { Queue } from 'bullmq';
-import { EnvironmentService } from '../../integrations/environment/environment.service';
 
 export class WorkspaceEvent {
   workspaceId: string;
@@ -15,22 +14,12 @@ export class WorkspaceListener {
   private readonly logger = new Logger(WorkspaceListener.name);
 
   constructor(
-    private readonly environmentService: EnvironmentService,
-    @InjectQueue(QueueName.SEARCH_QUEUE) private searchQueue: Queue,
     @InjectQueue(QueueName.AI_QUEUE) private aiQueue: Queue,
   ) {}
 
   @OnEvent(EventName.WORKSPACE_DELETED)
   async handlePageDeleted(event: WorkspaceEvent) {
     const { workspaceId } = event;
-    if (this.isTypesense()) {
-      await this.searchQueue.add(QueueJob.WORKSPACE_DELETED, { workspaceId });
-    }
-
     await this.aiQueue.add(QueueJob.WORKSPACE_DELETED, { workspaceId });
   }
-
-  isTypesense(): boolean {
-    return this.environmentService.getSearchDriver() === 'typesense';
-  }
 }