feat(jobs): ingest.karakeep worker

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

lib/jobs/index.js

@@ -3,8 +3,9 @@ import * as echo from './workers/echo.js';
 import * as url from './workers/url.js';
 import * as blob from './workers/blob.js';
 import * as embed from './workers/embed.js';
+import * as karakeep from './workers/karakeep.js';
 
-const WORKERS = [echo, url, blob, embed];
+const WORKERS = [echo, url, blob, embed, karakeep];
 
 export async function registerWorkers() {
   for (const w of WORKERS) {