parseCombineMsgItemsFromJson

Parses a list of CombineMsgItem from a JSON array.

This method handles the complete parsing of message items, including:

• Extracting message metadata (fromUserId, targetId, timestamp, objectName)

• Inferring message type if not provided

• Parsing message content using messageContentFromJson

JSON format:

[
  {
    "fromUserId": "user123",
    "targetId": "channel456",
    "timestamp": 1234567890,
    "objectName": "RC:TxtMsg",
    "content": {"text": "Hello"}
  }
]

Parameters