feat: 引入deepseek结构化输出

api/app/agents/memoir/memory_agent.py

@@ -15,6 +15,7 @@ from app.agents.memoir.prompts import (
     get_text_rewrite_prompt,
     inject_image_placeholder_template,
 )
+from app.features.memoir.memoir_images.json_payload import extract_json_payload
 
 logger = get_logger(__name__)
 
@@ -64,17 +65,14 @@ class MemoryAgent:
             prompt = get_text_rewrite_prompt(
                 segments_text, chapter_category, existing_content or ""
             )
-            response = await self.llm.ainvoke(prompt)
+            json_llm = self.llm.bind(
+                model_kwargs={"response_format": {"type": "json_object"}},
+                max_tokens=4096,
+            )
+            response = await json_llm.ainvoke(prompt)
             content = response.content if hasattr(response, "content") else str(response)
             content = content.strip()
-            if content.startswith("```json"):
-                content = content[7:]
-            if content.startswith("```"):
-                content = content[3:]
-            if content.endswith("```"):
-                content = content[:-3]
-            content = content.strip()
-            result = json.loads(content)
+            result = json.loads(extract_json_payload(content))
             result["content"] = inject_image_placeholder_template(
                 result.get("content") or ""
             )