chore: update default account and add example data

- Update default login email to xinmi@local.com
- Update default password to 12345678 (and bcrypt hash in crm.sql)
- Add example customers, products, and contracts to init SQL
- Fix Docker env interpolation for VITE_API_BASE_URL
- Hardcode local backend API URL in frontend .env files
- Update README and docs to reflect new default credentials

web/src/axios/index.js

@@ -1,15 +1,18 @@
 import axios from 'axios';
 import { message } from 'ant-design-vue';
 
-axios.defaults.baseURL = import.meta.env.VITE_API_BASE_URL
+console.log('DEBUG: import.meta.env.VITE_API_BASE_URL =', import.meta.env.VITE_API_BASE_URL);
 
 const request = axios.create({
-    // timeout: 5000,`
+    baseURL: import.meta.env.VITE_API_BASE_URL || '/api',
+    // timeout: 5000,
     headers: {
         'Content-Type': 'application/json;charset=UTF-8'
     }
 })
 
+console.log('DEBUG: axios baseURL =', request.defaults.baseURL);
+
 request.interceptors.request.use(config => {
     config.headers['uid'] = localStorage.getItem('uid')
     config.headers['token'] = localStorage.getItem('token')