consumer模块完成95%，在和商家端对接聊天购物闭环

sql/fix_shop_visibility.sql

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+-- Fix permissions and RLS for ml_shops to make it searchable
+-- Run this in Supabase SQL Editor
+
+-- 1. Grant access to postgres/anon/authenticated roles (Standard Supabase setup)
+GRANT SELECT ON public.ml_shops TO anon, authenticated, service_role;
+
+-- 2. Enable RLS
+ALTER TABLE public.ml_shops ENABLE ROW LEVEL SECURITY;
+
+-- 3. Create policies
+-- Drop existing potential policies to avoid conflicts
+DROP POLICY IF EXISTS "Public can view active shops" ON public.ml_shops;
+DROP POLICY IF EXISTS "Merchants can view own shop" ON public.ml_shops;
+
+-- Policy: Everyone can see active shops
+CREATE POLICY "Public can view active shops"
+ON public.ml_shops
+FOR SELECT
+USING (status = 1);
+
+-- Policy: Merchants can see and edit their own shop
+CREATE POLICY "Merchants can view own shop"
+ON public.ml_shops
+FOR ALL
+USING (auth.uid() = merchant_id);
+
+-- 4. Update product_count for the test shop (and others)
+-- This ensures the sorting works as expected
+UPDATE public.ml_shops s
+SET product_count = (
+    SELECT count(*) 
+    FROM public.ml_products p 
+    WHERE p.merchant_id = s.merchant_id AND p.status = 1
+);