feat(admin): complete integration of auth, delivery, and system infrastructure modules

docs/sql/20_rls/admin/ml_system_configs_rls_v1.sql

@@ -0,0 +1,17 @@
+-- =====================================================================================
+-- RLS: 系统配置表安全策略
+-- 位置：docs/sql/20_rls/admin/ml_system_configs_rls_v1.sql
+-- 对象类型：RLS 策略
+-- 版本：v1
+-- 说明：允许所有登录用户读取配置；管理端全量操作通过 RPC (SECURITY DEFINER) 执行
+-- =====================================================================================
+
+-- 启用 RLS
+ALTER TABLE public.ml_system_configs ENABLE ROW LEVEL SECURITY;
+
+-- 1. 允许所有登录用户读取配置 (用于前端业务逻辑判断)
+DROP POLICY IF EXISTS system_configs_select_policy ON public.ml_system_configs;
+CREATE POLICY system_configs_select_policy ON public.ml_system_configs 
+FOR SELECT TO authenticated USING (true);
+
+-- 管理端全量管理将通过 SECURITY DEFINER 的 RPC 接口执行，此处不再额外开放直接表操作