[FEAT] Support neon-iris

[mikejgray]

Objective

Currently, when an alert is scheduled, it does not get back to the gradio or websat interfaces for neon-iris. You can see the reminder in the neon-skill logs but there's no transport back to the web interfaces.

Initial Implementation Requirements

• Allow at least spoken reminders to go back to the profile that created them
• Optionally, emit the reminder event data so that the web interface(s) can also display something on the screen

Other Considerations

No response

[NeonDaniel]

Relates to NeonGeckoCom/neon-hana#6

[NeonDaniel]

#135 adds an event for expired alerts

[NeonDaniel]

Still needed:

• documentation of neon.alert Messages
• validation of backwards-compat. with local and existing server implementations
• implementation of a client handler to validate emitted data/context