fix: api client get_message models (#359)

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Author: CaralHsi

src/memos/api/product_models.py

@@ -191,7 +191,7 @@ class GetMessagesData(BaseModel):
     """Data model for get messages response based on actual API."""
 
     message_detail_list: list[MessageDetail] = Field(
-        default_factory=list, alias="memory_detail_list", description="List of message details"
+        default_factory=list, alias="message_detail_list", description="List of message details"
     )