feat(jobs): ingest.blob worker (content-addressed)

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

lib/jobs/workers/blob.js

@@ -0,0 +1,31 @@
+import fs from 'node:fs/promises';
+import * as refs from '../../db/repos/refs.js';
+import { defaultStore } from '../../ingest/blob_store.js';
+
+export const NAME = 'ingest.blob';
+
+function kindFor(content_type, filename) {
+  if (content_type?.startsWith('image/')) return 'image';
+  if (content_type === 'application/pdf' || filename?.toLowerCase().endsWith('.pdf')) return 'pdf';
+  return 'file';
+}
+
+export async function handler(job) {
+  const { space_id, tmp_path, filename, content_type, meta = {} } = job.data;
+  const buf = await fs.readFile(tmp_path);
+  const { sha, path } = await defaultStore().write(buf);
+  try { await fs.unlink(tmp_path); } catch { /* */ }
+
+  const kind = kindFor(content_type, filename);
+  const row = await refs.create({
+    space_id,
+    kind,
+    source_url: null,
+    title: meta.title || filename || sha.slice(0, 12),
+    summary: null,
+    body_text: null,
+    blob_path: path,
+    metadata: { sha, content_type, filename, size: buf.length, ...(meta.metadata || {}) }
+  }, { kind: 'system', id: null });
+  return { ref_id: row.id, sha };
+}