修复: DeepSeek reasoning_content 全链路透传(跨6 crate补字段+映射+agentic loop累积回传)

src-tauri/src/commands/ai/title.rs

@@ -55,6 +55,7 @@ pub(crate) async fn ensure_conversation_title(
                 tool_calls: None,
                 model: None,
                 status: None,
+                reasoning_content: m.reasoning_content.clone(),
             })
             .collect();
         (summary, session.messages.all_messages_clone())
@@ -134,6 +135,7 @@ async fn generate_title_via_llm(
         stream: false,
         tools: None,
         tool_choice: None,
+        reasoning_content: None,
     };
     // LLM 并发限流（标题生成属独立调用，纳入双层 Semaphore）
     let _global_permit = llm_concurrency.acquire_global().await;