BREAKING: drop deprecated event.details alias on KeyborgFocusInEvent

[layershifter]

Summary

KeyborgFocusInEvent.details is an @deprecated alias of event.detail carried for early consumers that predate the CustomEvent.detail migration. The known consumer chain — Tabster's src/State/FocusedElement.ts and the rest of its codebase — reads e.detail exclusively, and the field has been marked deprecated for several releases.

Drops the interface field and the per-dispatch event.details = details assignment in setupFocusEvent.

The KeyborgFocusInEvent interface collapses to a type alias:

// before
export interface KeyborgFocusInEvent extends CustomEvent<KeyborgFocusInEventDetails> {
  /** @deprecated - used `event.detail` */
  details?: KeyborgFocusInEventDetails;
}

// after
export type KeyborgFocusInEvent = CustomEvent<KeyborgFocusInEventDetails>;

Matching KeyborgFocusOutEvent's existing shape.

Public API impact

KeyborgFocusInEvent no longer carries the optional details field. Consumers should use event.detail. Worth a deprecation-removal call-out in the release notes (or a major bump if the maintainers prefer strict semver).

[github-actions]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
keyborg All exports	3.974 kB 1.627 kB	3.962 kB 1.622 kB	-12 B -5 B
keyborg createKeyborg() & disposeKeyborg()	3.806 kB 1.586 kB	3.794 kB 1.58 kB	-12 B -6 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
keyborg KEYBORG_FOCUSIN constant	64 B 80 B

_{🤖 This report was generated against dfd7fe32327b37d8746c44aef6cebeda1ecc2397}