feat(chat): trigger onFinish callback after message completion #329

Add `onFinish` callback invocation in `NormalChatCodingPanel` to notify when message processing is complete.

Author: phodal

core/src/main/kotlin/cc/unitmesh/devti/gui/chat/NormalChatCodingPanel.kt

@@ -274,6 +274,7 @@ class NormalChatCodingPanel(private val chatCodingService: ChatCodingService, va
             }
         }
 
+        messageView.onFinish(text)
         return text
     }