fix(product-suite): allow braces in business prompts

tests/test_product_suite.py

@@ -294,6 +294,21 @@ class ProductSuiteTests(unittest.TestCase):
         self.assertIn("商品ID：未绑定商品", rendered)
         self.assertIn("参考图序号：2", rendered)
 
+    def test_business_prompt_braces_are_not_reparsed_as_template_variables(self):
+        template = prompts.load_default_product_suite_prompt()
+        business_prompt = "适合 {儿童} 使用，支持 {日常通勤} 场景"
+
+        rendered = product_suite.build_suite_prompt(
+            business_prompt,
+            product_suite.default_suite_settings(),
+            "白底图",
+            "51100639510",
+            template_text=template,
+        )
+
+        self.assertIn(business_prompt, rendered)
+        self.assertEqual([], product_suite.product_suite_prompt_errors(template))
+
 
 if __name__ == "__main__":
     unittest.main()