Remove JsonValidator export

[CraigMacomber]

Description

Remove obsolete JsonValidator Alpha API in tree.

Breaking Changes

Users must migrate as described in changeset.

Reviewer Guidance

The review process is outlined on this wiki page.

[Copilot]

Pull Request Overview

This PR removes the obsolete JsonValidator Alpha API from the tree package and replaces it with FormatValidator. The migration eliminates deprecated interfaces and consolidates validation to use the newer format validator pattern.

Key Changes

• Removed JsonValidator, SchemaValidationFunction, noopValidator, and typeboxValidator Alpha APIs
• Updated all code references to use FormatValidatorBasic instead of typeboxValidator
• Replaced noopValidator with FormatValidatorNoOp throughout the codebase

Reviewed Changes

Copilot reviewed 40 out of 40 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/framework/fluid-framework/api-report/fluid-framework.alpha.api.md	Removes deprecated JsonValidator types from public API
packages/dds/tree/api-report/tree.alpha.api.md	Removes deprecated JsonValidator types from tree API
packages/dds/tree/src/codec/codec.ts	Updates ICodecOptions to only accept FormatValidator, inlines noopValidator
packages/dds/tree/src/codec/noopValidator.ts	Removes entire file containing deprecated validator
packages/dds/tree/src/external-utilities/typeboxValidator.ts	Makes typeboxValidator private, keeps FormatValidatorBasic export
Multiple test files	Updates all test code to use FormatValidatorBasic instead of typeboxValidator
Multiple source files	Updates production code to use FormatValidatorNoOp instead of noopValidator

[CraigMacomber]

Attempting to re-trigger license/cla check

[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

> fluid-framework-docs-site@0.0.0 ci:check-links /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test "npm run serve -- --no-open" 3000 check-links

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-docs-site@0.0.0 serve
> docusaurus serve --no-open

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

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

Crawling...

Stats:
  236987 links
    1726 destination URLs
    1962 URLs ignored
       0 warnings
       0 errors