feat(chat): chat-launcher-button emits (clicked) output#354
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The inner <button> now directly emits a `clicked` output, replacing the previous pattern where consumers bound `(click)` to the host element and relied on event bubbling. The bubbling approach worked visually but was fragile under hit-testing — Playwright (and potentially screen readers / pointer-event detection in higher stacking contexts) could mis-target the wrapping host element when a higher-z-index sibling overlapped the launcher's bounding box. Migrated internal consumers (chat-sidebar, chat-popup) to (clicked). Back-compat: native (click) bindings on the host still work — the click event still bubbles unchanged. External consumers don't need to migrate, but should prefer (clicked) for new code. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Adds a `clicked` output to `ChatLauncherButtonComponent`, bound directly to the inner ``'s native click. Replaces the host-bubbled `(click)` pattern with an explicit, unambiguous click target.
Why
The previous pattern bound `(click)` on the `` host element and relied on click events bubbling up from the inner `
`. This worked for real users but was fragile under hit-testing:Moving the click handler to the inner `
` (where the button visually IS) eliminates the ambiguity.Back-compat
Native `(click)` bindings on `` still work — the click event still bubbles through. External consumers don't need to migrate. The migration is opt-in for explicitness.
Internal consumers migrated
Test plan
🤖 Generated with Claude Code