feat(透视表): 工序分布包含在库/完成 + 增加时间筛选

- wip-matrix 去掉状态过滤，全量分布，工序包含「在库」(生产完成)
- 后端加 since/until 按任务接手/创建时间过滤
- 前端 MatrixBoard 加 RangePicker 日期筛选 + 全部清除

frontend/src/pages/MatrixBoard.tsx

@@ -3,21 +3,29 @@
  * Y 轴 = 规格型号，X 轴 = 人员 或 工序，单元格 = 该交叉点的在制品设备数
  */
 import { useEffect, useMemo, useState } from "react";
-import { Radio, Table } from "antd";
+import { Radio, Table, DatePicker, Button } from "antd";
+import type { Dayjs } from "dayjs";
 import { fetchWipMatrix, type WipMatrixRow } from "../services/dashboardApi";
 
+const { RangePicker } = DatePicker;
+
 export default function MatrixBoard() {
   const [dimension, setDimension] = useState<"assignee" | "task_name">("assignee");
+  const [range, setRange] = useState<[Dayjs, Dayjs] | null>(null);
   const [data, setData] = useState<WipMatrixRow[]>([]);
   const [loading, setLoading] = useState(false);
 
   useEffect(() => {
     setLoading(true);
-    fetchWipMatrix(dimension)
+    fetchWipMatrix(
+      dimension,
+      range ? range[0].startOf("day").toISOString() : undefined,
+      range ? range[1].endOf("day").toISOString() : undefined,
+    )
       .then(setData)
       .catch(() => setData([]))
       .finally(() => setLoading(false));
-  }, [dimension]);
+  }, [dimension, range]);
 
   // 🔧 核心：扁平数组 → 动态交叉表（规格型号为行、dimension_key 为列）
   const { columns, dataSource } = useMemo(() => {
@@ -67,12 +75,22 @@ export default function MatrixBoard() {
       <div className="mb-4 flex flex-wrap items-center justify-between gap-3">
         <div>
           <h2 className="text-xl font-bold text-gray-800">📊 WIP 分布矩阵</h2>
-          <p className="mt-1 text-sm text-gray-500">在制品分布透视表：规格型号 × {dimension === "assignee" ? "人员" : "工序"} · 单元格为设备数量</p>
+          <p className="mt-1 text-sm text-gray-500">生产分布透视表：规格型号 × {dimension === "assignee" ? "人员" : "工序"} · 含在库/完成</p>
+        </div>
+        <div className="flex items-center gap-2">
+          <RangePicker
+            size="small"
+            value={range as any}
+            onChange={(dates) => setRange(dates as [Dayjs, Dayjs] | null)}
+            style={{ width: 240 }}
+            placeholder={["开始日期", "结束日期"]}
+          />
+          {range && <Button size="small" onClick={() => setRange(null)}>全部</Button>}
+          <Radio.Group value={dimension} onChange={(e) => setDimension(e.target.value)} optionType="button" buttonStyle="solid">
+            <Radio.Button value="assignee">按人员分布</Radio.Button>
+            <Radio.Button value="task_name">按工序分布</Radio.Button>
+          </Radio.Group>
         </div>
-        <Radio.Group value={dimension} onChange={(e) => setDimension(e.target.value)} optionType="button" buttonStyle="solid">
-          <Radio.Button value="assignee">按人员分布</Radio.Button>
-          <Radio.Button value="task_name">按工序分布</Radio.Button>
-        </Radio.Group>
       </div>
 
       <div className="rounded-xl bg-white p-4 shadow-sm">