fix: Synology UX — "🤔 생각 중..." + route시 "📝 더 깊이 살펴볼게요..."

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

nanoclaude/services/worker.py

@@ -162,6 +162,8 @@ async def run(job: Job) -> None:
 
             if job.callback != "synology":
                 await state_stream.push(job.id, "rewrite", {"content": rewritten_message})
+            else:
+                await send_to_synology("📝 더 깊이 살펴볼게요...")
 
             if job.status == JobStatus.cancelled:
                 return