refactor: 整合财务系统到主应用并重构后端架构

主要变更:
- 将独立的 web-finance 应用整合到 web-antd 主应用中
- 重命名 backend-mock 为 backend,增强后端功能
- 新增财务模块 API 端点(账户、预算、类别、交易)
- 增强财务仪表板和报表功能
- 添加 SQLite 数据存储支持和财务数据导入脚本
- 优化路由结构,删除冗余的 finance-system 模块

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

apps/backend/utils/response.ts

@@ -0,0 +1,68 @@
+import type { EventHandlerRequest, H3Event } from 'h3';
+
+export function useResponseSuccess<T = any>(data: T) {
+  return {
+    code: 0,
+    data,
+    error: null,
+    message: 'ok',
+  };
+}
+
+export function usePageResponseSuccess<T = any>(
+  page: number | string,
+  pageSize: number | string,
+  list: T[],
+  { message = 'ok' } = {},
+) {
+  const pageData = pagination(
+    Number.parseInt(`${page}`),
+    Number.parseInt(`${pageSize}`),
+    list,
+  );
+
+  return {
+    ...useResponseSuccess({
+      items: pageData,
+      total: list.length,
+    }),
+    message,
+  };
+}
+
+export function useResponseError(message: string, error: any = null) {
+  return {
+    code: -1,
+    data: null,
+    error,
+    message,
+  };
+}
+
+export function forbiddenResponse(
+  event: H3Event<EventHandlerRequest>,
+  message = 'Forbidden Exception',
+) {
+  setResponseStatus(event, 403);
+  return useResponseError(message, message);
+}
+
+export function unAuthorizedResponse(event: H3Event<EventHandlerRequest>) {
+  setResponseStatus(event, 401);
+  return useResponseError('Unauthorized Exception', 'Unauthorized Exception');
+}
+
+export function sleep(ms: number) {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}
+
+export function pagination<T = any>(
+  pageNo: number,
+  pageSize: number,
+  array: T[],
+): T[] {
+  const offset = (pageNo - 1) * Number(pageSize);
+  return offset + Number(pageSize) >= array.length
+    ? array.slice(offset)
+    : array.slice(offset, offset + Number(pageSize));
+}