feat: 引入deepseek结构化输出

api/tests/test_memoir_image_prompting.py

@@ -45,10 +45,12 @@ class MemoirImagePromptingTest(unittest.TestCase):
             liblib_template_uuid="tpl-uuid",
         )
         llm = Mock()
-        llm.invoke.return_value.content = (
+        bound_llm = Mock()
+        bound_llm.invoke.return_value.content = (
             '{"prompt":"A grandmother in a quiet courtyard, summer cicadas, soft watercolor",'
             '"style":"watercolor","size":"1024x1024"}'
         )
+        llm.bind.return_value = bound_llm
         service = MemoirImagePromptService(llm=llm, settings=settings)
 
         result = service.build_prompt(
@@ -74,13 +76,15 @@ class MemoirImagePromptingTest(unittest.TestCase):
             liblib_template_uuid="tpl-uuid",
         )
         llm = Mock()
-        llm.invoke.return_value.content = """```json
+        bound_llm = Mock()
+        bound_llm.invoke.return_value.content = """```json
 {
   "prompt": "A middle-aged teacher stands on the empty stage, realistic, cinematic lighting",
   "style": "realistic",
   "size": "1280x720"
 }
 ```"""
+        llm.bind.return_value = bound_llm
         service = MemoirImagePromptService(llm=llm, settings=settings)
 
         result = service.build_prompt(
@@ -112,7 +116,9 @@ class MemoirImagePromptingTest(unittest.TestCase):
             liblib_template_uuid="tpl-uuid",
         )
         llm = Mock()
-        llm.invoke.return_value.content = "not-json"
+        bound_llm = Mock()
+        bound_llm.invoke.return_value.content = "not-json"
+        llm.bind.return_value = bound_llm
         service = MemoirImagePromptService(llm=llm, settings=settings)
 
         result = service.build_prompt(