feat: 流程配置页附件开关；待办详情支持审批人补传附件（ADR 0016）

src/api/approval/attachment/index.ts

@@ -0,0 +1,26 @@
+import request from '@/utils/request';
+import type { ApiResult } from '@/api';
+import { THINK_API_URL } from '@/config/setting';
+import type { ApprovalAttachment } from '../instance/model';
+
+/**
+ * 上传审批附件（报送人与当前待办处理人都可上传，ADR 0016）
+ */
+export async function uploadApprovalAttachment(data: {
+  instanceId: number;
+  file: File;
+  category?: string;
+}) {
+  const form = new FormData();
+  form.append('file', data.file);
+  form.append('instanceId', String(data.instanceId));
+  form.append('category', data.category || 'OTHER');
+  const res = await request.post<ApiResult<ApprovalAttachment>>(
+    THINK_API_URL + '/approval/attachment/upload',
+    form
+  );
+  if (res.data.code === 0 && res.data.data) {
+    return res.data.data;
+  }
+  return Promise.reject(new Error(res.data.message));
+}