feat(plan): 计划详细面板 + 来料重量/外径/分卷重量 + 在线/生产中状态机 + 入口移动 + 上次模板回填

- backend: plan 增加 incoming_weight/incoming_od/split_weights(JSON) 字段及迁移
- backend: GET /plan/last-template 返回最近一条计划的工艺字段用于新增回填（多端共享）
- backend: PATCH /plan/{id}/start 设为 producing，强制单卷在产（其他 producing 回退 online）
- backend: 生成实绩时按卷号自动把对应计划状态置为 produced
- frontend: 新增计划默认状态 online；新增时调用 last-template 自动回填
- frontend: Plan 表格行点击展开 计划详细 面板（按截图布局）
- frontend: Plan 行操作增加「移动」（ready/online → producing）
- frontend: 物料跟踪页加 在线计划队列 + 入口移动按钮，显示当前生产中卷
- frontend: 计划弹窗新增 轧制模式/来料重量/来料外径/1-6#分卷重量

backend/app/api/plan.py

@@ -6,7 +6,7 @@ from datetime import datetime
 
 from app.database import get_db
 from app.models.plan import ProductionPlan
-from app.schemas.plan import PlanCreate, PlanUpdate, PlanOut
+from app.schemas.plan import PlanCreate, PlanUpdate, PlanOut, PlanTemplate
 from app.schemas.common import Response, PageResponse
 from app.services.auth_service import get_current_user
 
@@ -22,6 +22,16 @@ def _parse_dt(s):
         return None
 
 
+TEMPLATE_FIELDS = (
+    "steel_grade", "incoming_thickness", "product_thickness",
+    "deviation_upper", "deviation_lower",
+    "incoming_width", "product_width",
+    "packaging_req", "trim_req", "rolling_mode",
+    "coil_diameter", "split_count", "next_process",
+    "incoming_weight", "incoming_od", "split_weights",
+)
+
+
 @router.get("/", response_model=Response[PageResponse[PlanOut]])
 async def list_plans(
     page: int = 1,
@@ -48,6 +58,16 @@ async def list_plans(
     return Response.ok(PageResponse(total=total, page=page, page_size=page_size, items=items))
 
 
+@router.get("/last-template", response_model=Response[PlanTemplate])
+async def get_last_template(db: AsyncSession = Depends(get_db), _ = Depends(get_current_user)):
+    """最近一条计划的工艺字段（不含计划号/卷号/时间），用于新增时回填。"""
+    result = await db.execute(select(ProductionPlan).order_by(desc(ProductionPlan.created_at)).limit(1))
+    p = result.scalar_one_or_none()
+    if not p:
+        return Response.ok(PlanTemplate())
+    return Response.ok(PlanTemplate(**{k: getattr(p, k, None) for k in TEMPLATE_FIELDS}))
+
+
 @router.post("/", response_model=Response[PlanOut])
 async def create_plan(
     body: PlanCreate,
@@ -98,3 +118,24 @@ async def confirm_plan(plan_id: int, db: AsyncSession = Depends(get_db), _ = Dep
     plan.status = "online"
     await db.flush()
     return Response.ok(PlanOut.model_validate(plan))
+
+
+@router.patch("/{plan_id}/start", response_model=Response[PlanOut])
+async def start_producing(plan_id: int, db: AsyncSession = Depends(get_db), _ = Depends(get_current_user)):
+    """移动到入口，开始生产：本条→producing，其它 producing→online（单卷在产）。"""
+    result = await db.execute(select(ProductionPlan).where(ProductionPlan.id == plan_id))
+    plan = result.scalar_one_or_none()
+    if not plan:
+        raise HTTPException(status_code=404, detail="计划不存在")
+    # 其它正在生产的全部回退为在线（强制单卷在产）
+    others = await db.execute(
+        select(ProductionPlan).where(
+            ProductionPlan.status == "producing",
+            ProductionPlan.id != plan_id,
+        )
+    )
+    for o in others.scalars():
+        o.status = "online"
+    plan.status = "producing"
+    await db.flush()
+    return Response.ok(PlanOut.model_validate(plan))