fix: resolve CI lint and docs build failures

Apply ruff formatting to 3 files and add missing package-lock.json for docs/website.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/api/routers/runs.py

@@ -56,6 +56,7 @@ def _drop_finished_task(task: asyncio.Task[Any]) -> None:
     except Exception:
         structured_log(logger, "exception", "runs.background_task_failed")
 
+
 router = APIRouter(prefix="/runs", tags=["api-runs"])
 ACTIVE_RUN_STATUSES = {RunStatus.RUNNING, RunStatus.RESOLVING}
 

app/services/arxiv/rate_limit.py

@@ -99,9 +99,7 @@ async def _run_serialized_fetch(
         "arxiv.request_completed",
         status_code=int(response.status_code),
         wait_seconds=wait_seconds,
-        cooldown_remaining_seconds=_cooldown_remaining_seconds(
-            cooldown_until_value, now_utc=datetime.now(UTC)
-        ),
+        cooldown_remaining_seconds=_cooldown_remaining_seconds(cooldown_until_value, now_utc=datetime.now(UTC)),
         source_path=source_path,
     )
     return response, hit_rate_limit