feat(jobs): blob worker fans out to extract.pdf / extract.image

After creating a ref, the Node-side ingest.blob worker enqueues a
follow-up job for the Python void-workers (Plan 4) to OCR / extract
text. Other kinds (file) get no follow-up.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

lib/jobs/workers/blob.js

@@ -1,6 +1,7 @@
 import fs from 'node:fs/promises';
 import * as refs from '../../db/repos/refs.js';
 import { defaultStore } from '../../ingest/blob_store.js';
+import * as queue from '../queue.js';
 
 export const NAME = 'ingest.blob';
 
@@ -27,5 +28,12 @@ export async function handler(job) {
     blob_path: path,
     metadata: { sha, content_type, filename, size: buf.length, ...(meta.metadata || {}) }
   }, { kind: 'system', id: null });
+
+  // Plan 4: hand off to the Python void-workers for OCR / extraction.
+  if (kind === 'pdf') {
+    await queue.enqueue('extract.pdf', { ref_id: row.id, blob_path: path });
+  } else if (kind === 'image') {
+    await queue.enqueue('extract.image', { ref_id: row.id, blob_path: path });
+  }
   return { ref_id: row.id, sha };
 }

tests/jobs/workers/blob.test.js

@@ -9,6 +9,7 @@ import * as queue from '../../../lib/jobs/queue.js';
 import { registerWorkers } from '../../../lib/jobs/index.js';
 import * as spaces from '../../../lib/db/repos/spaces.js';
 import * as refs from '../../../lib/db/repos/refs.js';
+import * as jobsRepo from '../../../lib/db/repos/jobs.js';
 
 let tmpRoot;
 beforeEach(async () => {
@@ -45,4 +46,28 @@ describe('ingest.blob worker', () => {
     const rows = await refs.list({ space_id: sp.id });
     expect(rows[0].kind).toBe('image');
   });
+
+  it('enqueues extract.pdf after creating a pdf ref', async () => {
+    const sp = await spaces.create({ slug: 'bpdf', name: 'BPdf' }, { kind: 'user', id: null });
+    const upTmp = path.join(tmpRoot, 'doc.tmp');
+    await fs.writeFile(upTmp, Buffer.from('%PDF-1.4 ...'));
+    const id = await queue.enqueue('ingest.blob', {
+      space_id: sp.id, tmp_path: upTmp, filename: 'a.pdf', content_type: 'application/pdf'
+    });
+    await waitForJob('ingest.blob', id, { timeoutMs: 10_000 });
+    const pending = await jobsRepo.list({ name: 'extract.pdf' });
+    expect(pending.length).toBeGreaterThan(0);
+  });
+
+  it('enqueues extract.image after creating an image ref', async () => {
+    const sp = await spaces.create({ slug: 'bimg', name: 'BImg' }, { kind: 'user', id: null });
+    const upTmp = path.join(tmpRoot, 'pic.tmp');
+    await fs.writeFile(upTmp, Buffer.from([0x89, 0x50, 0x4e, 0x47]));
+    const id = await queue.enqueue('ingest.blob', {
+      space_id: sp.id, tmp_path: upTmp, filename: 'a.png', content_type: 'image/png'
+    });
+    await waitForJob('ingest.blob', id, { timeoutMs: 10_000 });
+    const pending = await jobsRepo.list({ name: 'extract.image' });
+    expect(pending.length).toBeGreaterThan(0);
+  });
 });