修复bug

src/llm/kimi.rs

@@ -242,8 +242,21 @@ impl KimiClient {
         result.choices
             .into_iter()
             .next()
-            .map(|c| c.message.content.trim().to_string())
-            .ok_or_else(|| anyhow::anyhow!("No response from Kimi"))
+            .map(|c| {
+                let content = c.message.content.trim().to_string();
+                if content.is_empty() {
+                    c.reasoning_content
+                        .map(|r| r.trim().to_string())
+                        .unwrap_or_default()
+                } else {
+                    content
+                }
+            })
+            .filter(|s| !s.is_empty())
+            .ok_or_else(|| anyhow::anyhow!(
+                "No response from Kimi. \
+                 If thinking mode is enabled, try disabling it or ensure the model supports it."
+            ))
     }
 }