feat: 移除PDI和订单号字段，新增设备巡检模块

- 从物料跟踪页面移除订单号列和表单字段
- 从导航菜单移除PDI管理，添加设备巡检
- 新增InspectionLocation和InspectionRecord后端模型和API
- 新增设备巡检前端页面（左侧点位列表，右侧设备和历史记录）

backend/app/schemas/material.py

@@ -0,0 +1,82 @@
+from pydantic import BaseModel
+from typing import Optional
+from datetime import datetime
+from app.models.material import CoilStatus
+
+
+class CoilCreate(BaseModel):
+    coil_no: str
+    order_no: Optional[str] = None
+    steel_grade: Optional[str] = None
+    spec_thickness: Optional[float] = None
+    spec_width: Optional[float] = None
+    target_thickness: Optional[float] = None
+    target_width: Optional[float] = None
+    gross_weight: Optional[float] = None
+    net_weight: Optional[float] = None
+    inner_diameter: Optional[float] = None
+    plan_id: Optional[int] = None
+    remark: Optional[str] = None
+
+
+class CoilUpdate(BaseModel):
+    order_no: Optional[str] = None
+    steel_grade: Optional[str] = None
+    spec_thickness: Optional[float] = None
+    spec_width: Optional[float] = None
+    target_thickness: Optional[float] = None
+    target_width: Optional[float] = None
+    gross_weight: Optional[float] = None
+    net_weight: Optional[float] = None
+    status: Optional[CoilStatus] = None
+    plan_id: Optional[int] = None
+    remark: Optional[str] = None
+
+
+class CoilOut(BaseModel):
+    id: int
+    coil_no: str
+    order_no: Optional[str]
+    steel_grade: Optional[str]
+    spec_thickness: Optional[float]
+    spec_width: Optional[float]
+    target_thickness: Optional[float]
+    target_width: Optional[float]
+    gross_weight: Optional[float]
+    net_weight: Optional[float]
+    status: CoilStatus
+    plan_id: Optional[int]
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class TrackingCreate(BaseModel):
+    coil_no: str
+    position: Optional[str] = None
+    event_type: str
+    event_desc: Optional[str] = None
+    actual_thickness: Optional[float] = None
+    actual_width: Optional[float] = None
+    speed: Optional[float] = None
+    tension: Optional[float] = None
+    operator: Optional[str] = None
+    event_time: datetime
+
+
+class TrackingOut(BaseModel):
+    id: int
+    coil_id: int
+    coil_no: str
+    position: Optional[str]
+    event_type: str
+    event_desc: Optional[str]
+    actual_thickness: Optional[float]
+    actual_width: Optional[float]
+    speed: Optional[float]
+    operator: Optional[str]
+    event_time: datetime
+
+    class Config:
+        from_attributes = True