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/common.py

@@ -0,0 +1,30 @@
+from pydantic import BaseModel
+from typing import Generic, TypeVar, Optional, List
+
+T = TypeVar("T")
+
+
+class Response(BaseModel, Generic[T]):
+    code: int = 200
+    msg: str = "success"
+    data: Optional[T] = None
+
+    @classmethod
+    def ok(cls, data=None, msg="success"):
+        return cls(code=200, msg=msg, data=data)
+
+    @classmethod
+    def error(cls, msg="error", code=500):
+        return cls(code=code, msg=msg, data=None)
+
+
+class PageParams(BaseModel):
+    page: int = 1
+    page_size: int = 20
+
+
+class PageResponse(BaseModel, Generic[T]):
+    total: int
+    page: int
+    page_size: int
+    items: List[T]