feat(web): onLinkPress and onMentionPress functionality

[hejsztynx]

Summary

Implemented the onLinkPress and onMentionPress callback functionality.

Test Plan

• write a mention or a link using the input in the example app
• press on it
• a relevant callback should be visible in the logs

Compatibility

OS	Implemented
iOS	❌
Android	❌
Web	✅

Checklist

• E2E tests are passing
• Required E2E tests have been added (if applicable)

[Copilot]

Pull request overview

Adds Web support for onLinkPress and onMentionPress in EnrichedText, including press-state styling via CSS variables and validating behavior through Playwright E2E coverage.

Changes:

• Introduces a Web press-interaction hook to intercept clicks on links, mentions, and checkbox list inputs.
• Extends HTML-style → CSS-variable conversion and mention CSS generation to support press-state colors (links + mentions).
• Updates docs + example-web screen and adds Playwright tests for link/mention presses (including inside lists).

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/web/usePressInteractions.ts	New click-interaction hook to emit onLinkPress / onMentionPress and manage checkbox click behavior.
src/web/styleConversion/htmlStyleToCSSVariables.ts	Adds enriched-text press CSS variables (link + mention) and helper conversion API.
src/web/styleConversion/buildMentionRulesCSS.ts	Adds mention press-state CSS rules and CSS var fallbacks to default mention style.
src/web/styleConversion/tests/htmlStyleToCSSVariables.test.ts	Adds unit tests for enriched-text press CSS variables and fallback behavior.
src/web/styleConversion/tests/buildMentionRulesCSS.test.ts	Updates/extends tests for mention CSS var fallbacks and press-state rules.
src/web/EnrichedText.tsx	Wires new press callbacks into the web EnrichedText component using stable refs.
src/web/EnrichedText.css	Adds link :active styling; adjusts checkbox list interactivity to allow presses.
docs/WEB.md	Documents that web now supports onLinkPress / onMentionPress.
docs/TEXT_API_REFERENCE.md	Updates platform support tables to include Web for press callbacks.
apps/example-web/src/testScreens/TestEnrichedText.tsx	Displays last press events for verification and E2E assertions.
apps/example-web/src/App.tsx	Adds demo handlers logging link/mention press events.
.playwright/tests/enrichedTextPress.spec.ts	Adds E2E coverage for link/mention presses (incl. nested styling + list cases).

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[exploIF]

Suggested change

	onLinkPress={(event) => {
	setLastLinkPress(event);
	}}
	onMentionPress={(event) => {
	setLastMentionPress(event);
	}}
	onLinkPress={setLastLinkPress}
	onMentionPress={setLastMentionPress}