feat(web): browser environment assertion

[hejsztynx]

Summary

Both components EnrichedText and EnrichedTextInput are using DOM - DOMPurify, DOMParser, TipTap. An attempt of rendering them in a non-browser environment, e.g. in SSR applications, would result in a crash. Only DOMParser availability check was present, but it was silent. Now we check for the browser environment before any other component logic and throw a proper error. Documentation was also updated, to explicitly point the client-only nature of the components.

Compatibility

OS	Implemented
iOS	❌
Android	❌
Web	✅

Checklist

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

[Copilot]

Pull request overview

Adds an explicit runtime assertion that EnrichedText and EnrichedTextInput only run in a real browser/DOM environment, to avoid SSR crashes and provide a clearer error, and updates web docs accordingly.

Changes:

• Introduce assertBrowserEnvironment() and invoke it at the start of EnrichedText and EnrichedTextInput.
• Remove silent DOMParser-missing fallbacks from web HTML normalization helpers.
• Document that the web components are client-only (SSR not supported).

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/web/normalization/prepareHtmlForWeb.ts	Removes silent non-DOM fallback; relies on browser-only execution path.
src/web/normalization/htmlNormalizer.ts	Removes silent non-DOM fallback before using DOMParser.
src/web/EnrichedTextInput.tsx	Asserts browser environment before running component logic.
src/web/EnrichedText.tsx	Asserts browser environment before running component logic.
src/web/assertBrowserEnvironment.ts	Adds shared DOM availability assertion with a clearer error message.
docs/WEB.md	Documents client-only rendering requirement (no SSR).

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[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Comments suppressed due to low confidence (1)

src/web/normalization/prepareHtmlForWeb.ts:11

• prepareHtmlForWeb now relies on DOMParser (and Node.ELEMENT_NODE) without any guard. In non-DOM environments this will throw a low-level ReferenceError (DOMParser is not defined) instead of a library-specific, actionable error.

  if (useHtmlNormalizer) {
    html = normalizeHtml(html);
  }

  const parser = new DOMParser();

[exploIF]

TipTap works SSR, why our input cannot work there as well?