feat: 新增管理后台前端项目及安全加固

refactor(saas): 重构认证中间件与限流策略
- 登录限流调整为5次/分钟/IP
- 注册限流调整为3次/小时/IP
- GET请求不计入限流

fix(saas): 修复调度器时间戳处理
- 使用NOW()替代文本时间戳
- 兼容TEXT和TIMESTAMPTZ列类型

feat(saas): 实现环境变量插值
- 支持${ENV_VAR}语法解析
- 数据库密码支持环境变量注入

chore: 新增前端管理界面
- 基于React+Ant Design Pro
- 包含路由守卫/错误边界
- 对接58个API端点

docs: 更新安全加固文档
- 新增密钥管理规范
- 记录P0安全项审计结果
- 补充TLS终止说明

test: 完善配置解析单元测试
- 新增环境变量插值测试用例

admin-temp-dir/src/services/agent-templates.ts

@@ -0,0 +1,28 @@
+import request, { withSignal } from './request'
+import type { AgentTemplate, PaginatedResponse } from '@/types'
+
+export const agentTemplateService = {
+  list: (params?: Record<string, unknown>, signal?: AbortSignal) =>
+    request.get<PaginatedResponse<AgentTemplate>>('/agent-templates', withSignal({ params }, signal)).then((r) => r.data),
+
+  get: (id: string, signal?: AbortSignal) =>
+    request.get<AgentTemplate>(`/agent-templates/${id}`, withSignal({}, signal)).then((r) => r.data),
+
+  create: (data: {
+    name: string; description?: string; category?: string; source?: string
+    model?: string; system_prompt?: string; tools?: string[]
+    capabilities?: string[]; temperature?: number; max_tokens?: number
+    visibility?: string
+  }, signal?: AbortSignal) =>
+    request.post<AgentTemplate>('/agent-templates', data, withSignal({}, signal)).then((r) => r.data),
+
+  update: (id: string, data: {
+    description?: string; model?: string; system_prompt?: string
+    tools?: string[]; capabilities?: string[]; temperature?: number
+    max_tokens?: number; visibility?: string; status?: string
+  }, signal?: AbortSignal) =>
+    request.post<AgentTemplate>(`/agent-templates/${id}`, data, withSignal({}, signal)).then((r) => r.data),
+
+  archive: (id: string, signal?: AbortSignal) =>
+    request.delete<AgentTemplate>(`/agent-templates/${id}`, withSignal({}, signal)).then((r) => r.data),
+}