refactor(frontend): migrate Customer domain to centralized API services

- Replaced all direct axios imports with service layer calls across 8 customer files
- Migrated core pages: home.vue, create.vue, edit.vue
- Migrated profile pages: profile.vue (1100+ lines), TankEstimation.vue
- Migrated supporting pages: ServicePlanEdit.vue, tank/edit.vue, list.vue

Services integrated:
- customerService: CRUD, descriptions, tank info, automatic status
- authService: authentication and Authorize.net account management
- paymentService: credit cards, transactions, payment authorization
- deliveryService: delivery records and automatic delivery data
- serviceService: service calls, parts, and service plans
- adminService: statistics, social comments, and reports
- queryService: dropdown data (customer types, states)

Type safety improvements:
- Updated paymentService.ts with accurate AxiosResponse types
- Fixed response unwrapping to match api.ts interceptor behavior
- Resolved all TypeScript errors in customer domain (0 errors)

Benefits:
- Consistent authentication via centralized interceptors
- Standardized error handling across all API calls
- Improved type safety with proper TypeScript interfaces
- Single source of truth for API endpoints
- Better testability through mockable services

Verified with vue-tsc --noEmit - all customer domain files pass type checking

src/pages/customer/list.vue

@@ -30,8 +30,7 @@
 
 <script setup lang="ts">
 import { ref, onMounted } from 'vue'
-import axios from 'axios'
-import authHeader from '../../services/auth.header'
+import { adminService } from '../../services/adminService'
 import { Customer } from '../../types/models'
 
 // Reactive data
@@ -39,13 +38,7 @@ const customers = ref<Customer[]>([])
 
 // Functions
 const fetchCustomers = () => {
-  let path = import.meta.env.VITE_BASE_URL + '/report/customers/list';
-  axios({
-    method: 'get',
-    url: path,
-    withCredentials: true,
-    headers: authHeader(),
-  })
+  adminService.money.customerListReport()
     .then((response: any) => {
       if (response.data.ok) {
         customers.value = response.data.customers;