feat(product-suite): add cmhub vision AI writing

tests/test_workers.py

@@ -20,6 +20,7 @@ from app.workers import BaseWorker, run_worker
 from app.gui.workers import (
     ImageStudioDownloadOriginalWorker,
     ImageStudioPullImagesWorker,
+    ProductSuiteAiWriteWorker,
     ProductSuiteGenerateWorker,
 )
 
@@ -198,6 +199,36 @@ class WorkerTests(unittest.TestCase):
 
         self.assertEqual({"asset_id": 12, "cancelled": True}, summary)
 
+    def test_product_suite_ai_write_worker_uses_image_analysis_not_title_generation(self):
+        worker = ProductSuiteAiWriteWorker(
+            "补充要求",
+            "输出语言：繁体中文",
+            image_paths=["first.jpg", "second.jpg"],
+            config={"ai": {"backend": "cmhub"}},
+            cmhub_config_path="cmhub.json",
+        )
+        expected = {
+            "text": "根据图片整理的商品卖点",
+            "image_count": 2,
+            "metadata": {"points_cost": 1, "points_balance": 231},
+        }
+
+        with mock.patch(
+            "app.gui.workers.ai.analyze_product_images",
+            return_value=expected,
+        ) as analyze, mock.patch("app.gui.workers.ai.gen_title") as gen_title:
+            result = worker.execute()
+
+        analyze.assert_called_once_with(
+            "补充要求",
+            "输出语言：繁体中文",
+            ["first.jpg", "second.jpg"],
+            config={"ai": {"backend": "cmhub"}},
+            cmhub_config_path="cmhub.json",
+        )
+        gen_title.assert_not_called()
+        self.assertEqual(expected, result)
+
     def test_product_suite_worker_writes_generation_round_and_stable_slots(self):
         with tempfile.TemporaryDirectory() as temp_dir:
             db_path = os.path.join(temp_dir, "cmshopee.db")