feat: 新增账户服务及其相关类型定义，包括账户的增删改查、转账、排序及余额计算功能。

src/services/accountService.ts

@@ -26,6 +26,12 @@ function mapAccountFromApi(data: Record<string, unknown>): Account {
     lastSyncTime: data.last_sync_time as string | undefined,
     accountCode: data.account_code as string | undefined,
     accountType: data.account_type as 'asset' | 'liability' | undefined,
+    tags: (data.tags as { id: number; name: string; color: string; created_at: string }[] | undefined)?.map(t => ({
+      id: t.id,
+      name: t.name,
+      color: t.color,
+      createdAt: t.created_at,
+    })),
   };
 }
 
@@ -66,6 +72,7 @@ export async function createAccount(data: AccountFormInput): Promise<Account> {
     payment_date: data.paymentDate,
     warning_threshold: data.warningThreshold,
     account_code: data.accountCode,
+    tag_ids: data.tagIds,
   };
   const response = await api.post<ApiResponse<Account>>('/accounts', payload);
   if (!response.data) {
@@ -91,6 +98,7 @@ export async function updateAccount(id: number, data: Partial<AccountFormInput>)
   if (data.warningThreshold !== undefined) payload.warning_threshold = data.warningThreshold;
   if (data.accountCode !== undefined) payload.account_code = data.accountCode;
   if (data.accountType !== undefined) payload.account_type = data.accountType;
+  if (data.tagIds !== undefined) payload.tag_ids = data.tagIds;
 
   const response = await api.put<ApiResponse<Account>>(`/accounts/${id}`, payload);
   if (!response.data) {

src/types/index.ts

@@ -149,6 +149,7 @@ export interface Account {
   lastSyncTime?: string;
   accountCode?: string;
   accountType?: 'asset' | 'liability';
+  tags?: Tag[];
 }
 
 // Budget Interface
@@ -294,6 +295,7 @@ export interface AccountFormInput {
   warningThreshold?: number;
   accountCode?: string;
   accountType?: 'asset' | 'liability';
+  tagIds?: number[];
 }
 
 export interface TransferFormInput {