feat(SAM/WEB): 수주관리 페이지에 수주완료 FCM 알림 버튼 추가

- fcm.ts에 sendSalesOrderNotification 프리셋 함수 추가
- channel_id: push_sales_order, type: sales_order
- order-management-sales 페이지에 수주완료 버튼 추가

src/app/[locale]/(protected)/sales/order-management-sales/page.tsx

@@ -10,7 +10,7 @@
  * - API 연동 완료 (2025-01-08)
  */
 
-import { useState, useRef, useEffect, useCallback } from "react";
+import { useState, useRef, useEffect, useCallback, useTransition } from "react";
 import { useRouter } from "next/navigation";
 import {
   FileText,
@@ -22,6 +22,7 @@ import {
   Truck,
   Eye,
   Loader2,
+  Bell,
 } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
@@ -58,6 +59,8 @@ import {
   type OrderStatus,
   type OrderStats,
 } from "@/components/orders/actions";
+import { sendSalesOrderNotification } from "@/lib/actions/fcm";
+import { isNextRedirectError } from "@/lib/utils/redirect-error";
 
 
 // 상태 뱃지 헬퍼 함수
@@ -83,6 +86,7 @@ function getOrderStatusBadge(status: OrderStatus) {
 
 export default function OrderManagementSalesPage() {
   const router = useRouter();
+  const [isPending, startTransition] = useTransition();
   const [searchTerm, setSearchTerm] = useState("");
   const [filterType, setFilterType] = useState("all");
   const [selectedItems, setSelectedItems] = useState<Set<string>>(new Set());
@@ -390,6 +394,23 @@ export default function OrderManagementSalesPage() {
     }
   };
 
+  // FCM 알림 발송 핸들러
+  const handleSendNotification = useCallback(async () => {
+    startTransition(async () => {
+      try {
+        const result = await sendSalesOrderNotification();
+        if (result.success) {
+          toast.success(`수주완료 알림을 발송했습니다. (${result.sentCount || 0}건)`);
+        } else {
+          toast.error(result.error || "알림 발송에 실패했습니다.");
+        }
+      } catch (error) {
+        if (isNextRedirectError(error)) throw error;
+        toast.error("알림 발송 중 오류가 발생했습니다.");
+      }
+    });
+  }, []);
+
   // 탭 구성
   const tabs: TabOption[] = [
     {
@@ -620,10 +641,16 @@ export default function OrderManagementSalesPage() {
         description="수주 관리 및 생산지시 연동"
         icon={FileText}
         headerActions={
-          <Button className="ml-auto" onClick={() => router.push("/sales/order-management-sales/new")}>
-            <FileText className="w-4 h-4 mr-2" />
-            수주 등록
-          </Button>
+          <div className="flex gap-2 ml-auto">
+            <Button variant="outline" onClick={handleSendNotification} disabled={isPending}>
+              <Bell className="w-4 h-4 mr-2" />
+              수주완료
+            </Button>
+            <Button onClick={() => router.push("/sales/order-management-sales/new")}>
+              <FileText className="w-4 h-4 mr-2" />
+              수주 등록
+            </Button>
+          </div>
         }
         stats={stats}
         searchValue={searchTerm}

src/lib/actions/fcm.ts

@@ -160,4 +160,19 @@ export async function sendNewClientNotification(
     channel_id: 'push_urgent',
     ...customParams,
   });
+}
+
+/**
+ * 수주 알림 발송 (프리셋)
+ */
+export async function sendSalesOrderNotification(
+  customParams?: Partial<FcmNotificationParams>
+): Promise<FcmResult> {
+  return sendFcmNotification({
+    title: '수주 알림',
+    body: '수주가 완료되었습니다.',
+    type: 'sales_order',
+    channel_id: 'push_sales_order',
+    ...customParams,
+  });
 }