BIZ8-11 增强采购项目关联

server/src/routes/projects.js

@@ -187,6 +187,7 @@ function buildProjectDetailInclude() {
         tasks: true,
         risks: true,
         reimbursements: true,
+        purchase_requests: true,
         travel_requests: true,
         todo_items: true,
         weekly_reports: true,
@@ -425,6 +426,7 @@ function mapProjectDetail(project) {
       tasks: project._count?.tasks ?? 0,
       risks: project._count?.risks ?? 0,
       reimbursements: project._count?.reimbursements ?? 0,
+      purchaseRequests: project._count?.purchase_requests ?? 0,
       travelRequests: project._count?.travel_requests ?? 0,
       todoItems: project._count?.todo_items ?? 0,
       weeklyReports: project._count?.weekly_reports ?? 0,
@@ -861,6 +863,29 @@ async function projectsRoutes(fastify) {
     return sendData(reply, request, { totalAmount: totalAmount.toFixed(2), items: items.map((item) => ({ id: item.id, requestNo: item.request_no ?? item.id, status: item.status, estimatedAmount: String(item.estimated_amount ?? 0), startDate: item.start_date?.toISOString?.().slice(0, 10) ?? null, endDate: item.end_date?.toISOString?.().slice(0, 10) ?? null, updatedAt: item.updated_at?.toISOString?.() ?? null })) });
   });
 
+  fastify.get("/projects/:id/purchase-requests/summary", { preHandler: fastify.authenticate }, async (request, reply) => {
+    await ensureFeatureEnabled(fastify, request, FEATURE_FLAG_KEYS.projectLinking);
+    const projectId = parseId(request.params?.id);
+    await ensureReadableProject(fastify, request, projectId);
+    const items = await fastify.prisma.purchaseRequest.findMany({
+      where: { project_id: projectId },
+      orderBy: { updated_at: "desc" },
+      select: { id: true, request_no: true, title: true, status: true, total_amount: true, updated_at: true },
+    });
+    const totalAmount = items.reduce((sum, item) => sum + Number(item.total_amount ?? 0), 0);
+    return sendData(reply, request, {
+      totalAmount: totalAmount.toFixed(2),
+      items: items.map((item) => ({
+        id: item.id,
+        requestNo: item.request_no ?? item.id,
+        title: item.title,
+        status: item.status,
+        totalAmount: String(item.total_amount ?? 0),
+        updatedAt: item.updated_at?.toISOString?.() ?? null,
+      })),
+    });
+  });
+
   fastify.get("/projects/:id/weekly-reports", { preHandler: fastify.authenticate }, async (request, reply) => {
     await ensureFeatureEnabled(fastify, request, FEATURE_FLAG_KEYS.projectLinking);
     const projectId = parseId(request.params?.id);