Fix AgentMail block message handling and list entry validation

- Only include reason parameter for block list types in list creation
- Replace raw thread messages with processed messages in result dict

autogpt_platform/backend/backend/blocks/agent_mail/lists.py

@@ -165,7 +165,7 @@ class AgentMailCreateListEntryBlock(Block):
     ) -> BlockOutput:
         client = _client(credentials)
         params: dict = {"entry": input_data.entry}
-        if input_data.reason:
+        if input_data.reason and input_data.list_type == ListType.BLOCK:
             params["reason"] = input_data.reason
 
         result = client.lists.create(

autogpt_platform/backend/backend/blocks/agent_mail/threads.py

@@ -150,6 +150,8 @@ class AgentMailGetInboxThreadBlock(Block):
             for m in getattr(thread, "messages", [])
         ]
         result = thread.__dict__ if hasattr(thread, "__dict__") else {}
+        if "messages" in result:
+            result["messages"] = messages
 
         yield "thread_id", thread.thread_id
         yield "messages", messages
@@ -316,6 +318,8 @@ class AgentMailGetOrgThreadBlock(Block):
             for m in getattr(thread, "messages", [])
         ]
         result = thread.__dict__ if hasattr(thread, "__dict__") else {}
+        if "messages" in result:
+            result["messages"] = messages
 
         yield "thread_id", thread.thread_id
         yield "messages", messages