fix(lark): preserve incoming rich-text code blocks (#2626)

src/langbot/pkg/platform/adapters/lark/message_converter.py

@@ -184,7 +184,7 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
         normalized = LarkMessageConverter._normalize_inbound_content(message, message_content)
         for ele in normalized:
             tag = ele.get('tag')
-            if tag in {'text', 'md'}:
+            if tag in {'text', 'md', 'code_block'}:
                 text = ele.get('text') or ''
                 if text:
                     components.append(platform_message.Plain(text=text))

src/langbot/pkg/platform/sources/lark.py

@@ -726,7 +726,7 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
             ]
 
         for ele in message_content['content']:
-            if ele['tag'] == 'text':
+            if ele['tag'] in {'text', 'code_block'}:
                 lb_msg_list.append(platform_message.Plain(text=ele['text']))
             elif ele['tag'] == 'at':
                 lb_msg_list.append(platform_message.At(target=ele['user_name']))