备份：大改造前的完整版本 - 修复合同细节/付款节点/文件上传/施工管理/项目保存等BUG

frontend/src/pages/budget/BudgetProjectDetail.tsx

@@ -2,7 +2,7 @@ import React, { useState, useEffect } from 'react';
 import { Card, Typography, Button, Space, Tag, message, Empty, Divider, Row, Col, List, Descriptions, Avatar, Badge, Modal, Input } from 'antd';
 import { ArrowLeftOutlined, EyeOutlined, FileAddOutlined, FileOutlined, CheckCircleOutlined, CloseCircleOutlined } from '@ant-design/icons';
 import { useNavigate, useParams } from 'react-router-dom';
-import axios from 'axios';
+import apiClient from '../../utils/request';
 import dayjs from 'dayjs';
 import QuotationCreateModal from './QuotationCreateModal';
 import ContractCreateModal from './ContractCreateModal';
@@ -78,7 +78,7 @@ const BudgetProjectDetail: React.FC = () => {
     
     setLoading(true);
     try {
-      const res = await axios.get(`/api/budget-projects/${id}`);
+      const res = await apiClient.get(`/budget-projects/${id}`);
       if (res.data.success) {
         const projectData = res.data.data;
         // 后端已经解析了数据，直接使用
@@ -136,7 +136,7 @@ const BudgetProjectDetail: React.FC = () => {
     if (!project) return;
     
     try {
-      const res = await axios.put(`/api/budget-projects/${project.id}/unsigned`, {}, {
+      const res = await apiClient.put(`/budget-projects/${project.id}/unsigned`, {}, {
         headers: {
           'x-user-role': currentUser?.role || 'employee'
         }
@@ -167,7 +167,7 @@ const BudgetProjectDetail: React.FC = () => {
     
     setDeleteLoading(true);
     try {
-      const res = await axios.delete(`/api/budget-projects/${project.id}/quotations/${quotationDeleteId}`, {
+      const res = await apiClient.delete(`/budget-projects/${project.id}/quotations/${quotationDeleteId}`, {
         headers: {
           'x-user-role': currentUser?.role || 'employee'
         }
@@ -218,7 +218,7 @@ const BudgetProjectDetail: React.FC = () => {
     
     setDeleteLoading(true);
     try {
-      const res = await axios.delete(`/api/budget-projects/${project.id}`, {
+      const res = await apiClient.delete(`/budget-projects/${project.id}`, {
         headers: {
           'x-user-role': currentUser?.role || 'employee'
         }