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/api/finance/categories/[id].delete.ts

@@ -0,0 +1,18 @@
+import { getRouterParam } from 'h3';
+
+import { deleteCategoryRecord } from '~/utils/finance-metadata';
+import { useResponseError, useResponseSuccess } from '~/utils/response';
+
+export default defineEventHandler(async (event) => {
+  const id = Number(getRouterParam(event, 'id'));
+  if (Number.isNaN(id)) {
+    return useResponseError('参数错误', -1);
+  }
+
+  const deleted = deleteCategoryRecord(id);
+  if (!deleted) {
+    return useResponseError('分类不存在', -1);
+  }
+
+  return useResponseSuccess({ message: '删除成功' });
+});

apps/backend/api/finance/categories/[id].put.ts

@@ -0,0 +1,27 @@
+import { getRouterParam, readBody } from 'h3';
+
+import { updateCategoryRecord } from '~/utils/finance-metadata';
+import { useResponseError, useResponseSuccess } from '~/utils/response';
+
+export default defineEventHandler(async (event) => {
+  const id = Number(getRouterParam(event, 'id'));
+  if (Number.isNaN(id)) {
+    return useResponseError('参数错误', -1);
+  }
+
+  const body = await readBody(event);
+
+  const updated = updateCategoryRecord(id, {
+    name: body?.name,
+    icon: body?.icon,
+    color: body?.color,
+    userId: body?.userId,
+    isActive: body?.isActive,
+  });
+
+  if (!updated) {
+    return useResponseError('分类不存在', -1);
+  }
+
+  return useResponseSuccess(updated);
+});