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/services/material_service.py

@@ -0,0 +1,70 @@
+from datetime import datetime
+from typing import Optional
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, func
+from loguru import logger
+
+from app.models.material import Coil, MaterialTracking, CoilStatus
+from app.services.message_parser import dispatcher
+
+
+class MaterialService:
+
+    @staticmethod
+    async def get_coil(db: AsyncSession, coil_no: str) -> Optional[Coil]:
+        result = await db.execute(select(Coil).where(Coil.coil_no == coil_no))
+        return result.scalar_one_or_none()
+
+    @staticmethod
+    async def create_tracking(db: AsyncSession, coil: Coil, event_type: str,
+                               position: str = None, **kwargs) -> MaterialTracking:
+        tracking = MaterialTracking(
+            coil_id=coil.id,
+            coil_no=coil.coil_no,
+            position=position,
+            event_type=event_type,
+            event_time=kwargs.get("event_time", datetime.now()),
+            **{k: v for k, v in kwargs.items() if k != "event_time"},
+        )
+        db.add(tracking)
+        await db.flush()
+        return tracking
+
+    @staticmethod
+    async def update_coil_status(db: AsyncSession, coil: Coil, status: CoilStatus):
+        coil.status = status
+        await db.flush()
+
+
+material_service = MaterialService()
+
+
+# 注册L1报文处理器
+@dispatcher.register("PC01")
+async def handle_coil_entry(data: dict):
+    """处理卷材入口报文"""
+    from app.database import AsyncSessionLocal
+    async with AsyncSessionLocal() as db:
+        coil = await material_service.get_coil(db, data["coil_no"])
+        if coil:
+            await material_service.update_coil_status(db, coil, CoilStatus.ON_LINE)
+            await material_service.create_tracking(
+                db, coil, "entry", position="入口", **data
+            )
+            await db.commit()
+            logger.info(f"卷材入线: {data['coil_no']}")
+
+
+@dispatcher.register("PC02")
+async def handle_coil_exit(data: dict):
+    """处理卷材出口报文"""
+    from app.database import AsyncSessionLocal
+    async with AsyncSessionLocal() as db:
+        coil = await material_service.get_coil(db, data["coil_no"])
+        if coil:
+            await material_service.update_coil_status(db, coil, CoilStatus.FINISHED)
+            await material_service.create_tracking(
+                db, coil, "exit", position="出口", **data
+            )
+            await db.commit()
+            logger.info(f"卷材出线: {data['coil_no']}")