Feature Request: Warning/Error for Unhandled Events in Current State

[milanbgd011]

Description

When an event is sent to a machine but no state can handle it (no matching transition or action), it would be valuable to have a warning or error. This would help catch potential issues during development, such as:

• Typos in event names
• Events sent at wrong time/state
• Missing event handlers
• Race conditions where events arrive too early/late

Current Behavior

• Events that don't match any transitions are silently ignored
• No warning/error is shown when an event can't be handled
• Developer has no feedback about unhandled events