sql数据流，amdin业务逻辑接入

docs/sql/10_schema/distribution/ak_distribution_agents_v1.sql

@@ -0,0 +1,41 @@
+-- =====================================================================================
+-- Schema: 分销代理商管理表
+-- 位置：docs/sql/10_schema/distribution/ak_distribution_agents_v1.sql
+-- 说明：管理事业部旗下的代理商，按商家隔离。
+-- =====================================================================================
+
+CREATE TABLE IF NOT EXISTS public.ak_distribution_agents (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    merchant_id UUID NOT NULL REFERENCES public.ak_users(id) ON DELETE CASCADE,
+    division_id UUID NOT NULL REFERENCES public.ak_distribution_divisions(id) ON DELETE CASCADE,
+    uid UUID NOT NULL REFERENCES public.ak_users(id) ON DELETE CASCADE,
+    
+    name TEXT NOT NULL,                          -- 代理商名称（或备注名）
+    status BOOLEAN DEFAULT true,                 -- 状态: true开启, false关闭
+    
+    created_at TIMESTAMPTZ DEFAULT now(),
+    updated_at TIMESTAMPTZ DEFAULT now(),
+
+    -- 约束：一个用户在一个商家下只能成为一个代理商
+    UNIQUE(merchant_id, uid)
+);
+
+-- 启用 RLS
+ALTER TABLE public.ak_distribution_agents ENABLE ROW LEVEL SECURITY;
+
+-- 权限策略：商家仅能管理自己的代理商
+CREATE POLICY "Merchants manage their own agents" 
+ON public.ak_distribution_agents FOR ALL 
+TO authenticated
+USING (merchant_id = auth.uid())
+WITH CHECK (merchant_id = auth.uid());
+
+-- 允许查看
+CREATE POLICY "Authenticated users view active agents" 
+ON public.ak_distribution_agents FOR SELECT 
+TO authenticated
+USING (status = true);
+
+-- 索引
+CREATE INDEX IF NOT EXISTS idx_agents_merchant ON public.ak_distribution_agents(merchant_id);
+CREATE INDEX IF NOT EXISTS idx_agents_division ON public.ak_distribution_agents(division_id);