Fix lint issues in pet detection integration

- Import PetsConfig directly instead of forward ref string
- Fix import sorting in worker.py, queries.py, constants.py
- Remove unused imports in profiles.py, trainer.py, processor.py

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

.python-version

@@ -0,0 +1 @@
+3.12.0

vigilar/alerts/profiles.py

@@ -1,9 +1,8 @@
 """Smart alert profile matching engine."""
 
 import logging
-from datetime import datetime
 
-from vigilar.config import AlertProfileConfig, AlertProfileRule
+from vigilar.config import AlertProfileConfig
 from vigilar.constants import HouseholdState
 
 log = logging.getLogger(__name__)

vigilar/camera/worker.py

@@ -13,18 +13,17 @@ import signal
 import time
 
 import cv2
-import numpy as np
 
 from vigilar.bus import MessageBus
 from vigilar.camera.hls import HLSStreamer, RemoteHLSStreamer
 from vigilar.camera.motion import MotionDetector
 from vigilar.camera.recorder import AdaptiveRecorder
 from vigilar.camera.ring_buffer import RingBuffer
-from vigilar.config import CameraConfig, MQTTConfig, RemoteConfig
+from vigilar.config import CameraConfig, MQTTConfig, PetsConfig, RemoteConfig
 from vigilar.constants import Topics
-from vigilar.detection.yolo import YOLODetector
 from vigilar.detection.pet_id import PetIDClassifier
 from vigilar.detection.wildlife import classify_wildlife_threat
+from vigilar.detection.yolo import YOLODetector
 
 log = logging.getLogger(__name__)
 
@@ -49,7 +48,7 @@ def run_camera_worker(
     recordings_dir: str,
     hls_dir: str,
     remote_cfg: RemoteConfig | None = None,
-    pets_cfg: "PetsConfig | None" = None,
+    pets_cfg: PetsConfig | None = None,
 ) -> None:
     """Main entry point for a camera worker process."""
     camera_id = camera_cfg.id

vigilar/constants.py

@@ -2,7 +2,6 @@
 
 from enum import StrEnum
 
-
 # --- Arm States ---
 
 class ArmState(StrEnum):

vigilar/detection/trainer.py

@@ -2,7 +2,7 @@
 
 import logging
 import shutil
-from dataclasses import dataclass, field
+from dataclasses import dataclass
 from pathlib import Path
 
 log = logging.getLogger(__name__)

vigilar/events/processor.py

@@ -1,6 +1,5 @@
 """Event processor — subscribes to MQTT, logs events, evaluates rules."""
 
-import json
 import logging
 import signal
 import time
@@ -10,7 +9,7 @@ from sqlalchemy.engine import Engine
 
 from vigilar.bus import MessageBus
 from vigilar.config import VigilarConfig
-from vigilar.constants import ArmState, EventType, Severity, Topics
+from vigilar.constants import EventType, Severity, Topics
 from vigilar.events.rules import RuleEngine
 from vigilar.events.state import ArmStateFSM
 from vigilar.storage.db import get_db_path, init_db

vigilar/storage/queries.py

@@ -21,7 +21,6 @@ from vigilar.storage.schema import (
     wildlife_sightings,
 )
 
-
 # --- Events ---
 
 def insert_event(