feat: 位置追踪优化、考勤去重、围栏考勤补充设备信息

- 地图轨迹点按定位类型区分颜色 (GPS蓝/WiFi青/LBS橙/蓝牙紫)
- LBS/WiFi定位点显示精度圈 (虚线圆, LBS~1km/WiFi~80m)
- 地图图例显示各定位类型颜色和精度范围
- 精度圈添加 bubble:true 防止遮挡轨迹点点击
- 点击列表记录直接在地图显示Marker+弹窗 (无需先加载轨迹)
- 修复3D地图setZoomAndCenter坐标偏移, 改用setCenter+setZoom
- 最新位置轮询超时从15s延长至30s (适配LBS慢响应)
- 考勤每日去重: 同设备同类型每天只记录一条 (fence/device/bluetooth通用)
- 围栏自动考勤补充设备电量/信号/基站信息 (从Device表和位置包获取)
- 考勤来源字段 attendance_source 区分 device/bluetooth/fence

via [HAPI](https://hapi.run)

Co-Authored-By: HAPI <noreply@hapi.run>

app/models.py

@@ -199,6 +199,10 @@ class AttendanceRecord(Base):
     attendance_type: Mapped[str] = mapped_column(
         String(20), nullable=False
     )  # clock_in, clock_out
+    attendance_source: Mapped[str] = mapped_column(
+        String(20), nullable=False, default="device",
+        server_default="device",
+    )  # device (0xB0/0xB1), bluetooth (0xB2), fence (auto)
     protocol_number: Mapped[int] = mapped_column(Integer, nullable=False)
     gps_positioned: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
     latitude: Mapped[float | None] = mapped_column(Float, nullable=True)