fix: 修复测试 schema 缺失字段，标记过时测试为 skip

- testutil/setup.go 补充 products.public_id、description，partners.status
- 过时 products/stock 流程测试标记 skip（provider 已不挂载）
- deploy.sh 补充 PUBLIC_URL dart-define

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

deploy/deploy.sh

@@ -30,7 +30,7 @@ cd "$REPO_ROOT"
 
 echo "=== 编译 Flutter Web ==="
 cd client
-flutter build web --release --dart-define=BASE_URL=https://$DOMAIN
+flutter build web --release --dart-define=BASE_URL=https://$DOMAIN --dart-define=PUBLIC_URL=https://$DOMAIN
 cd "$REPO_ROOT"
 
 echo "=== 上传后端二进制 ==="