build(client-core-interfaces): expose /beta entrypoint

[Jason Hartman (jason-ha)]

and update API reports with Beta Kuang (@beta) APIs.

[Copilot]

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

[github-actions]

Hi! Thank you for opening this PR. Want me to review it?

Based on the diff (30 lines, 5 files), I've queued these reviewers:

• Correctness — logic errors, race conditions, lifecycle issues
• Security — vulnerabilities, secret exposure, injection
• API Compatibility — breaking changes, release tags, type design
• Performance — algorithmic regressions, memory leaks
• Testing — coverage gaps, hollow tests

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• Start review

[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

1: starting server using command "npm run serve -- --no-open"
and when url "[ 'http://127.0.0.1:3000' ]" is responding with HTTP status code 200
running tests using command "npm run check-links"


> fluid-framework-website@0.0.0 serve
> docusaurus serve --no-open

[SUCCESS] Serving "build" directory at: http://localhost:3000/

> fluid-framework-website@0.0.0 check-links
> linkcheck http://localhost:3000 --skip-file skipped-urls.txt

Crawling...

Stats:
  309092 links
    1963 destination URLs
    2219 URLs ignored
       0 warnings
       0 errors

[github-actions]

Bundle size comparison

Base commit: unresolved
Head commit: 538f434fdc907b713174557760a02093de038beb

⚠️ Comparison unavailable.

No CI build was found for the PR HEAD commit. This shouldn't happen — the workflow only runs after the PR's Build - client packages check completes. Please report.