fix: send queue job payloads to the admin page as objects

BullMQ's asJSON() stringifies data, failedReason, stacktrace and
returnvalue. The Queues page reads them as objects, so payload repo IDs
never showed, failure reasons kept their JSON quotes, and a stack trace
rendered one block per character.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/server/routes/admin.ts

@@ -381,7 +381,16 @@ router.get("/queues", dashboardCache, async (req, res) => {
     ...QUEUE_STATES.map(async (state) => {
       const jobs = await targetQueue.getJobs([state], 0, 199);
       return jobs.map((j) => {
-        const json: Record<string, unknown> = { ...j.asJSON(), _state: state };
+        // asJSON() serializes these fields to strings; the dashboard needs
+        // the objects (payload repoId, stack lines, failure reason).
+        const json: Record<string, unknown> = {
+          ...j.asJSON(),
+          data: j.data,
+          failedReason: j.failedReason,
+          stacktrace: j.stacktrace,
+          returnvalue: j.returnvalue,
+          _state: state,
+        };
         if (state === "delayed" && j.delay > 0) {
           json.delayUntil = j.timestamp + j.delay;
         }