fix(驳回/返工): 抽屉与卡片数字口径一致，同时展示已驳回+返工任务

- 根因：卡片数字含返工任务(tasks_rework 实时快照)，但抽屉只列已驳回 → 点开为空
- get_rejected_tasks 扩展返回两类(kind=rejected 按时间过滤 / kind=rework 实时不过滤)
- 前端抽屉按「已驳回」「返工任务」分组展示，数字与明细一一对应

frontend/src/pages/admin/AdminDashboard.tsx

@@ -191,26 +191,42 @@ function CompletedRow({ t }: { t: CompletedTask }) {
 // ─── 被驳回明细项（卡片式） ──────────────────────────────
 function RejectedRow({ t }: { t: RejectedTask }) {
   const nav = useNavigate();
-  const rejectedTime = t.rejected_at ? dayjs(t.rejected_at).format("YYYY-MM-DD HH:mm") : "";
+  const timeStr = t.rejected_at ? dayjs(t.rejected_at).format("YYYY-MM-DD HH:mm") : "";
+  const isRework = t.kind === "rework";
   return (
     <div
       onClick={() => t.product_sn && nav(`/admin/tasks?sn=${t.product_sn}`)}
       className="cursor-pointer rounded-lg border border-gray-100 bg-white px-4 py-3 transition-shadow hover:border-red-200 hover:shadow-md"
     >
       <div className="flex items-center gap-2">
-        <AlertTriangle className="h-4 w-4 shrink-0 text-red-500" />
+        {isRework ? <RefreshCw className="h-4 w-4 shrink-0 text-orange-500" /> : <AlertTriangle className="h-4 w-4 shrink-0 text-red-500" />}
         <span className="text-sm font-semibold text-gray-800 truncate">{t.task_name}</span>
         <span className="text-xs text-gray-500">|</span>
-        <span className="shrink-0 rounded-full bg-red-50 px-2 py-0.5 text-[10px] font-bold text-red-600">已驳回</span>
-        <span className="text-xs text-gray-500 shrink-0">驳回人: {t.rejected_by}</span>
-        <span className="ml-auto shrink-0 text-xs text-gray-400">{rejectedTime}</span>
+        {isRework ? (
+          <span className="shrink-0 rounded-full bg-orange-50 px-2 py-0.5 text-[10px] font-bold text-orange-600">
+            {t.status === "WIP" ? "返工中" : t.status === "PENDING" ? "待返工" : "已返工"}
+          </span>
+        ) : (
+          <span className="shrink-0 rounded-full bg-red-50 px-2 py-0.5 text-[10px] font-bold text-red-600">已驳回</span>
+        )}
+        <span className="text-xs text-gray-500 shrink-0">
+          {isRework ? `返工人: ${t.rework_assignee}` : `驳回人: ${t.rejected_by}`}
+        </span>
+        <span className="ml-auto shrink-0 text-xs text-gray-400">{timeStr}</span>
       </div>
       <div className="mt-1.5 flex items-center gap-1.5 text-[11px] text-gray-400">
-        <span className="inline-flex items-center gap-1 rounded bg-orange-50 px-1.5 py-0.5 font-medium text-orange-600">
-          🔁 返工给: {t.rework_assignee}
-        </span>
-        <span className="text-gray-300">|</span>
-        <span className="truncate text-red-500/80" title={t.reject_reason || ""}>原因: {t.reject_reason || "—"}</span>
+        {!isRework && (
+          <>
+            <span className="inline-flex items-center gap-1 rounded bg-orange-50 px-1.5 py-0.5 font-medium text-orange-600">
+              🔁 返工给: {t.rework_assignee}
+            </span>
+            <span className="text-gray-300">|</span>
+            <span className="truncate text-red-500/80" title={t.reject_reason || ""}>原因: {t.reject_reason || "—"}</span>
+          </>
+        )}
+        {isRework && (
+          <span className="truncate text-orange-600/80">🔁 返工任务 · {t.rework_assignee} 负责</span>
+        )}
       </div>
       <div className="mt-1.5 flex items-center gap-1.5 text-[11px] text-gray-400">
         <span className="font-medium text-gray-500">{t.material_name || "未知设备"}</span>
@@ -588,7 +604,7 @@ export default function AdminDashboard() {
 
       {/* ═══ 驳回/返工明细抽屉 ═══ */}
       <Drawer
-        title={<span className="text-base font-bold">🔴 驳回/返工明细 <span className="font-normal text-gray-400">被驳回 {rejectedTasks.length} 条</span></span>}
+        title={<span className="text-base font-bold">🔴 驳回/返工明细 <span className="font-normal text-gray-400">共 {rejectedTasks.length} 条</span></span>}
         open={rejectedDrawerOpen}
         onClose={() => setRejectedDrawerOpen(false)}
         size="large"
@@ -600,11 +616,34 @@ export default function AdminDashboard() {
           </div>
         ) : rejectedTasks.length === 0 ? (
           <div className="py-16 text-center text-sm text-gray-400">
-            该时段暂无驳回记录
+            该时段暂无驳回/返工记录
           </div>
         ) : (
-          <div>
-            {rejectedTasks.map(t => <RejectedRow key={t.task_id} t={t} />)}
+          <div className="space-y-4">
+            {(() => {
+              const rejected = rejectedTasks.filter(t => t.kind === "rejected");
+              const rework = rejectedTasks.filter(t => t.kind === "rework");
+              return (
+                <>
+                  {rejected.length > 0 && (
+                    <div>
+                      <h4 className="mb-2 flex items-center gap-1.5 text-xs font-bold text-red-600">
+                        <AlertTriangle className="h-3.5 w-3.5" />已驳回 · {rejected.length} 条
+                      </h4>
+                      {rejected.map(t => <RejectedRow key={t.task_id} t={t} />)}
+                    </div>
+                  )}
+                  {rework.length > 0 && (
+                    <div>
+                      <h4 className="mb-2 flex items-center gap-1.5 text-xs font-bold text-orange-600">
+                        <RefreshCw className="h-3.5 w-3.5" />返工任务 · {rework.length} 条
+                      </h4>
+                      {rework.map(t => <RejectedRow key={t.task_id} t={t} />)}
+                    </div>
+                  )}
+                </>
+              );
+            })()}
           </div>
         )}
       </Drawer>

frontend/src/services/dashboardApi.ts

@@ -41,6 +41,7 @@ export interface CompletedTask {
 
 export interface RejectedTask {
   task_id: string;
+  kind: "rejected" | "rework";
   task_name: string;
   product_sn: string;
   external_serial: string | null;
@@ -49,7 +50,8 @@ export interface RejectedTask {
   rejected_by: string;
   rework_assignee: string;
   reject_reason: string | null;
-  rejected_at: string;
+  status: string | null;
+  rejected_at: string | null;
 }
 
 export interface PersonDevice {