RuntimeDefinitions: Rename asAlpha to asLegacyAlpha

[anthony-murphy]

This pull request updates the naming of the function used to cast a container runtime to its alpha interface, changing it from asAlpha to asLegacyAlpha. This change is applied throughout the codebase to improve clarity and consistency, especially in preparation for future API changes. All imports, exports, and usages of this function are updated accordingly in both runtime and test files.

[Copilot]

Pull Request Overview

This pull request renames the asAlpha function to asLegacyAlpha throughout the codebase to improve clarity and prepare for future API changes. The change affects the function definition, exports, and all usage sites.

• Renames the container runtime casting function from asAlpha to asLegacyAlpha
• Updates all imports and usages across test files and runtime definitions
• Updates the API report to reflect the new function name

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/runtime/runtime-definitions/src/stagingMode.ts	Updates the function definition from asAlpha to asLegacyAlpha
packages/runtime/runtime-definitions/src/index.ts	Updates the export statement to use the new function name
packages/runtime/runtime-definitions/api-report/runtime-definitions.legacy.alpha.api.md	Updates API documentation to reflect the renamed function
packages/test/test-end-to-end-tests/src/test/stagingMode.spec.ts	Updates import and usage of the renamed function
packages/test/local-server-tests/src/test/stagingMode.spec.ts	Updates import and usage of the renamed function
packages/test/local-server-tests/src/test/documentDirty.spec.ts	Updates import and usage of the renamed function
packages/test/local-server-stress-tests/src/stressDataObject.ts	Updates import and usage of the renamed function

[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:
  235713 links
    1720 destination URLs
    1953 URLs ignored
       0 warnings
       0 errors