fix: job_queue 모듈 import 방식 수정 — None 참조 해결

모듈 레벨 변수를 직접 import하면 init_queue() 이후에도
None 참조가 유지됨. 모듈 자체를 import하여 접근.

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

nanoclaude/main.py

@@ -13,7 +13,7 @@ from config import settings
 from db.database import init_db
 from routers import chat
 from services.backend_registry import backend_registry
-from services.job_queue import init_queue, job_queue
+from services import job_queue as jq_module
 
 logging.basicConfig(
     level=logging.INFO,
@@ -26,7 +26,7 @@ async def lifespan(app: FastAPI):
     await init_db()
     backend_registry.init_from_settings(settings)
     backend_registry.start_health_loop(settings.health_check_interval)
-    init_queue(settings.max_concurrent_jobs)
+    jq_module.init_queue(settings.max_concurrent_jobs)
     yield
     backend_registry.stop_health_loop()
 
@@ -66,9 +66,8 @@ async def root():
 
 @app.get("/health")
 async def health():
-    from services.job_queue import job_queue
     return {
         "status": "ok",
         "backends": backend_registry.health_summary(),
-        "queue": job_queue.stats if job_queue else {},
+        "queue": jq_module.job_queue.stats if jq_module.job_queue else {},
     }

nanoclaude/routers/chat.py

@@ -7,7 +7,7 @@ from fastapi.responses import StreamingResponse
 
 from models.schemas import CancelResponse, ChatRequest, ChatResponse, JobStatusResponse
 from services.job_manager import job_manager
-from services.job_queue import job_queue
+from services import job_queue as jq_module
 from services.state_stream import state_stream
 
 router = APIRouter(tags=["chat"])
@@ -18,7 +18,7 @@ async def create_chat(body: ChatRequest):
     """job_id 즉시 반환 (ACK). 백그라운드에서 파이프라인 처리 시작."""
     job = job_manager.create(body.message)
     state_stream.create(job.id)
-    await job_queue.submit(job)
+    await jq_module.job_queue.submit(job)
     return ChatResponse(job_id=job.id)
 
 
@@ -59,7 +59,7 @@ async def job_status(job_id: str):
         status=job.status,
         created_at=job.created_at,
         pipeline=job.pipeline,
-        queue_position=job_queue.position(job.id) if job_queue else None,
+        queue_position=jq_module.job_queue.position(job.id) if jq_module.job_queue else None,
     )
 
 
@@ -75,6 +75,6 @@ async def cancel_chat(job_id: str):
 @router.get("/queue/stats")
 async def queue_stats():
     """큐 통계."""
-    if job_queue:
-        return job_queue.stats
+    if jq_module.job_queue:
+        return jq_module.job_queue.stats
     return {"pending": 0, "active": 0}