admin的数据库文件补全，修复uvue中的数据库接入bug

docs/sql/30_rpc/product/rpc_admin_category_delete_v1.sql

@@ -2,9 +2,8 @@
 -- Admin 商品模块 - 删除分类 RPC
 -- 位置：docs/sql/30_rpc/product/
 -- 对象类型：RPC 函数（SECURITY DEFINER）
--- 方案：方案 1（有子项禁止删除）
--- 版本：v1
--- 依赖：ml_categories, ak_users 表已存在
+-- 版本：v1（支持级联软删除商品关联）
+-- 依赖：ml_categories, ml_products, ak_users 表已存在
 -- =====================================================================================
 
 CREATE OR REPLACE FUNCTION public.rpc_admin_category_delete(
@@ -15,31 +14,36 @@ SECURITY DEFINER
 SET search_path = public
 LANGUAGE plpgsql
 AS $$
+DECLARE
+    v_user_id UUID;
 BEGIN
     -- 1. 权限检查
-    IF NOT EXISTS (
-        SELECT 1 FROM public.ak_users 
-        WHERE id = auth.uid() AND role IN ('admin', 'analytics')
-    ) THEN
-        RAISE EXCEPTION 'Permission denied';
+    IF NOT public.check_admin_permission('product:category:delete') THEN
+        RAISE EXCEPTION 'Permission denied: product:category:delete';
     END IF;
 
-    -- 2. 检查是否有子分类 (方案 1)
+    -- 2. 获取当前操作用户 ID
+    SELECT id INTO v_user_id FROM public.ak_users WHERE auth_id = auth.uid();
+
+    -- 3. 检查是否有子分类 (方案 1)
     IF EXISTS (
-        SELECT 1 FROM public.ml_categories WHERE parent_id = p_id
+        SELECT 1 FROM public.ml_categories 
+        WHERE parent_id = p_id AND deleted_at IS NULL
     ) THEN
         RAISE EXCEPTION '请先删除该分类下的子分类';
     END IF;
 
-    -- 3. 检查是否有商品关联 (可选，通常作为安全保障)
-    IF EXISTS (
-        SELECT 1 FROM public.ml_products WHERE category_id = p_id AND status != 4
-    ) THEN
-        RAISE EXCEPTION '该分类下仍有商品，无法删除';
-    END IF;
+    -- 4. 级联软删除：该分类下的所有商品
+    UPDATE public.ml_products
+    SET deleted_at = now(),
+        deleted_by = v_user_id
+    WHERE category_id = p_id AND deleted_at IS NULL;
 
-    -- 4. 执行删除
-    DELETE FROM public.ml_categories WHERE id = p_id;
+    -- 5. 执行软删除分类本身
+    UPDATE public.ml_categories
+    SET deleted_at = now(),
+        deleted_by = v_user_id
+    WHERE id = p_id AND deleted_at IS NULL;
 
     RETURN FOUND;
 END;