feat(m2): add contract attachment upload and listing

web/delivery-platform-ui/src/api/platform.js

@@ -3,6 +3,18 @@ import axios from "axios";
 /**
  * @param {{ page?: number, size?: number, keyword?: string }} params
  */
+export function uploadContractAttachment(contractId, file) {
+  const formData = new FormData();
+  formData.append('file', file);
+  return axios.post(`/api/v1/contracts/${contractId}/attachments`, formData, {
+    headers: { 'Content-Type': 'multipart/form-data' }
+  });
+}
+
+export function listContractAttachments(contractId) {
+  return axios.get(`/api/v1/contracts/${contractId}/attachments`);
+}
+
 export function listCustomers(params) {
   return axios.get("/api/v1/customers", { params });
 }

web/delivery-platform-ui/src/views/ContractDetailView.vue

@@ -62,6 +62,26 @@
         </el-table-column>
       </el-table>
 
+      <h3 class="section-title">附件</h3>
+      <div>
+        <el-upload
+          :action="''"
+          :auto-upload="false"
+          :show-file-list="false"
+          :on-change="handleFileChange"
+          :accept="'.pdf,.doc,.docx,.xls,.xlsx,.zip'"
+        >
+          <el-button type="primary" v-if="isDraft || isEffective">上传附件</el-button>
+        </el-upload>
+        <el-table :data="attachments" stripe size="small" style="margin-top:8px">
+          <el-table-column prop="fileName" label="文件名" min-width="200" />
+          <el-table-column prop="fileSize" label="大小" width="100">
+            <template #default="{ row }">{{ (row.fileSize / 1024).toFixed(1) }} KB</template>
+          </el-table-column>
+          <el-table-column prop="createdAt" label="上传时间" width="170" />
+        </el-table>
+      </div>
+
       <h3 class="section-title">最近审计</h3>
       <el-table v-loading="auditLoading" :data="auditRows" border stripe size="small" style="width: 100%">
         <el-table-column label="时间" width="180">
@@ -110,6 +130,8 @@ import {
   listAuditEvents,
   listCustomers,
   listProjects,
+  uploadContractAttachment,
+  listContractAttachments,
 } from "../api/platform";
 import { apiErrorMessage } from "../utils/apiErrorMessage";
 
@@ -131,6 +153,9 @@ const form = reactive({
 const auditLoading = ref(false);
 const auditRows = ref([]);
 
+const attachments = ref([]);
+const uploading = ref(false);
+
 const lineDialogVisible = ref(false);
 const lineEditingId = ref(null);
 const lineFormRef = ref(null);
@@ -150,6 +175,7 @@ const transitionLoading = ref("");
 const contractId = computed(() => route.params.id);
 
 const isDraft = computed(() => String(contract.value?.status ?? "").toUpperCase() === "DRAFT");
+const isEffective = computed(() => String(contract.value?.status ?? "").toUpperCase() === "EFFECTIVE");
 
 const lineRows = computed(() => {
   const c = contract.value;
@@ -196,6 +222,7 @@ onMounted(async () => {
   auth.restoreAxiosAuth();
   await loadNameMaps();
   await refreshAll();
+  await loadAttachments();
 });
 
 watch(
@@ -459,6 +486,26 @@ function onTransition(btn) {
     })
     .catch(() => {});
 }
+
+async function loadAttachments() {
+  try {
+    const { data } = await listContractAttachments(route.params.id);
+    attachments.value = data || [];
+  } catch (e) { /* ignore */ }
+}
+
+async function handleFileChange(uploadFile) {
+  uploading.value = true;
+  try {
+    await uploadContractAttachment(route.params.id, uploadFile.raw);
+    ElMessage.success('上传成功');
+    loadAttachments();
+  } catch (e) {
+    ElMessage.error(apiErrorMessage(e, '上传失败'));
+  } finally {
+    uploading.value = false;
+  }
+}
 </script>
 
 <style scoped>