Add focusResourceGroup to api

[alexweininger]

Implements #1327

There's a test command in there that will be removed before merging

[Copilot]

Pull request overview

This PR adds a new focusResourceGroup API function that allows external extensions to programmatically focus on a resource group in the Focused Resources view by providing its resource group ID. The implementation adds backward compatibility by extending the existing focusGroup command to accept either a GroupingItem (existing behavior) or a string resource group ID (new behavior).

• Adds focusResourceGroup(resourceGroupId: string) to the public API
• Extends the focusGroup command to accept both GroupingItem and string ID parameters
• Includes comprehensive test coverage for both the command and API functionality

Reviewed changes

Copilot reviewed 13 out of 16 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
api/src/resources/resourcesApi.ts	Adds the focusResourceGroup method signature to the public API
api/package.json	Bumps API version from 3.0.0 to 3.1.0 (minor version for new feature)
api/package-lock.json	Updates lockfile with new version and @types/node upgrade to 22.x
api/docs/vscode-azureresources-api.d.ts	Regenerated TypeScript definitions including the new API method
api/CHANGELOG.md	Documents the new focusResourceGroup API function
src/api/createAzureResourcesHostApi.ts	Implements focusResourceGroup by delegating to the focusGroup command
src/api/createWrappedAzureResourcesExtensionApi.ts	Wraps focusResourceGroup with telemetry
src/commands/focus/focusGroup.ts	Extends focusGroup to accept string resource group IDs with validation
src/commands/focus/testFocusResourceGroup.ts	Adds manual test command for developers to test the new functionality
src/commands/registerCommands.ts	Registers the testFocusResourceGroup command
src/extension.ts	Exposes getFocusedGroup in test API
src/testApi.ts	Adds getFocusedGroup method to test API interface
package.json	Registers the testFocusResourceGroup command
package-lock.json	Updates lockfile (incidental peer dependency changes)
test/focusGroup.test.ts	Tests command-level functionality with backward compatibility and new string ID behavior
test/api/focusResourceGroup.test.ts	Tests API-level functionality including multiple focus changes and case handling

Files not reviewed (1)

• api/package-lock.json: Language not supported

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 17 changed files in this pull request and generated 3 comments.

Files not reviewed (1)

• api/package-lock.json: Language not supported

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[alexweininger]

This is ready for review

[bwateratmsft]

Can you remove the test code? Otherwise looks good.

[alexweininger]

@copilot remove the test commands

[Copilot]

@alexweininger I've opened a new pull request, #1335, to work on those changes. Once the pull request is ready, I'll request review from you.