feat(product-suite): add category targets and prompt compatibility

tests/test_product_suite.py

@@ -12,7 +12,10 @@ class ProductSuiteTests(unittest.TestCase):
     def test_defaults_and_per_image_total(self):
         settings = product_suite.default_suite_settings()
 
-        self.assertEqual(["白底图", "场景图", "卖点图"], product_suite.category_order(settings))
+        self.assertEqual(
+            ["白底图", "场景图", "模特场景图", "细节说明图", "卖点图"],
+            product_suite.category_order(settings),
+        )
         self.assertEqual(5, product_suite.suite_total_count(settings, 3))
 
         settings["per_image_primary"] = True
@@ -34,7 +37,10 @@ class ProductSuiteTests(unittest.TestCase):
         )
 
         self.assertEqual("3:4", settings["ratio"])
-        self.assertEqual(["白底图", "场景图", "卖点图", "尺寸图"], product_suite.category_order(settings))
+        self.assertEqual(
+            ["白底图", "场景图", "模特场景图", "细节说明图", "卖点图", "尺寸图"],
+            product_suite.category_order(settings),
+        )
         self.assertEqual(5, product_suite.suite_total_count(settings, 1))
 
     def test_recent_settings_only_keep_allowed_dropdown_values(self):
@@ -108,8 +114,14 @@ class ProductSuiteTests(unittest.TestCase):
                 spec["prompt"].splitlines()[-1].startswith("本次生成比例：4:3")
             )
 
-        self.assertIn("套图名称：白底图，白底主图", specs[0]["prompt"])
-        self.assertIn("套图名称：场景图，生活化场景", specs[1]["prompt"])
+        self.assertIn(
+            "生成目标：生成 Shopee 台灣商品白底主圖，純白背景，商品清晰置中，不添加多餘文字。",
+            specs[0]["prompt"],
+        )
+        self.assertIn(
+            "生成目标：生成生活化使用場景圖，展示商品在真實情境中的用途與氛圍，畫面自然可信。",
+            specs[1]["prompt"],
+        )
         white_prompt = specs[0]["prompt"]
         self.assertLess(white_prompt.index("重要尺寸要求"), white_prompt.index("重要禁用内容"))
         self.assertLess(white_prompt.index("重要禁用内容"), white_prompt.index("价格信息规则"))
@@ -153,9 +165,33 @@ class ProductSuiteTests(unittest.TestCase):
             "draft_hidden",
         )
         rendered = product_suite.render_product_suite_prompt(default_text, context)
-        self.assertIn("套图名称：尺寸图", rendered)
+        self.assertIn("生成目标：生成自定义分类图片：尺寸图。", rendered)
         self.assertNotIn("draft_", rendered)
-        self.assertNotIn("白底主图", rendered)
+        self.assertNotIn("套图名称：", rendered)
+
+        legacy_template = default_text.replace(
+            "生成目标：{生成目标}",
+            "套图名称：{套图名称}{补充描述}",
+        )
+        self.assertEqual([], product_suite.product_suite_prompt_errors(legacy_template))
+        legacy_rendered = product_suite.render_product_suite_prompt(legacy_template, context)
+        self.assertIn("套图名称：尺寸图，生成自定义分类图片：尺寸图。", legacy_rendered)
+
+    def test_category_descriptions_are_fixed_and_custom_name_is_explicit(self):
+        expected = {
+            "白底图": "生成 Shopee 台灣商品白底主圖，純白背景，商品清晰置中，不添加多餘文字。",
+            "场景图": "生成生活化使用場景圖，展示商品在真實情境中的用途與氛圍，畫面自然可信。",
+            "模特场景图": "生成模特或手持使用情境圖，畫面自然可信，商品為主角。",
+            "细节说明图": "生成商品細節特寫說明圖，突出材質、做工、接口、紋理或關鍵細節。",
+            "卖点图": "生成賣點詳解圖，使用繁體中文短文案呈現核心優勢，版面乾淨。",
+        }
+        for category, description in expected.items():
+            self.assertEqual(description, product_suite.category_description(category))
+
+        self.assertEqual(
+            "生成自定义分类图片：结构展示。",
+            product_suite.category_description("结构展示"),
+        )
 
     def test_product_suite_optional_item_and_reference_variables(self):
         template = prompts.load_default_product_suite_prompt() + (