FeatureStringMessage
Represents a detailed implementation of FeatureMessage that encapsulates a string message.
This class associates a string content with a specific feature-related message type, along with a timestamp indicating when the message was created. It is primarily utilized for text-based feature messages and integrates with the FeatureMessage interface to define its structure.
Instances of this type are timestamped at the moment of their creation, ensuring consistent temporal tracking for feature messages.