[EngSys] Fix shared Vitest dependency resolution

[Jeremy Meng (jeremymeng)]

Copilot agent (on behalf of Jeremy Meng (@jeremymeng)): Fix shared Vitest configuration imports under pnpm's strict dependency resolution.

Packages impacted by this PR

All packages that consume the repository's shared Vitest configuration. The change is owned by the root @azure/monorepo workspace package.

Issues associated with this PR

N/A

Describe the problem that is addressed by this PR

The root vitest.shared.config.ts imports vitest/config and vitest/node, but the root package did not declare Vitest. When a leaf SDK package loaded this shared configuration, the config bundler could not resolve those imports from the root and emitted UNRESOLVED_IMPORT warnings even though tests passed.

This PR declares Vitest at the root and also declares the existing @types/node catalog dependency so pnpm reuses the repository's Node 22 Vite peer variant instead of creating a Node 25 variant.

What are the possible designs available to address the problem? If there are more than one possible design, why was the one in this PR chosen?

The alternatives were to duplicate or redirect Vitest imports in each leaf package, or change config loading to tolerate unresolved imports. Declaring the dependencies where the shared configuration lives preserves strict resolution and fixes all consumers without per-package changes.

Are there test cases added in this PR? (If not, why?)

No new test case is needed because this is a dependency-resolution correction. The original @azure/storage-queue command was run and completed with 21 passing tests without either UNRESOLVED_IMPORT warning:

npm run test:node -- -- .\test\queueclient.spec.ts

Provide a list of related PRs (if any)

N/A

Command used to generate this PR:**(Applicable only to SDK release request PRs)

N/A

Checklists

• Added impacted package name to the issue description
• Does this PR need any fixes in the SDK Generator? (If so, create an Issue in the typespec-azure repository and link it here)
• Added a changelog (if necessary)

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[Copilot]

🟢 Approval recommended

The reviewed change resolves dependency imports with no unresolved issues.

Warning

• Copilot's review of this pull request may be incomplete because some of the changed files are excluded by your Copilot content exclusion settings. See Excluding content from Copilot for details.

Pull request overview

Declares shared Vitest dependencies at the workspace root for strict pnpm resolution.

Changes:

• Adds catalog-managed vitest and @types/node development dependencies.

File summaries

File	Description
package.json	Declares dependencies required by the shared Vitest configuration.

Review details

Files excluded by content exclusion policy (1)

• pnpm-lock.yaml

• Files reviewed: 1/2 changed files
• Comments generated: 0
• Review effort level: Balanced

[Copilot]

🟢 Approval recommended

The reviewed change resolves dependency ownership with no unresolved issues.

Warning

• Copilot's review of this pull request may be incomplete because some of the changed files are excluded by your Copilot content exclusion settings. See Excluding content from Copilot for details.

Review details

Files excluded by content exclusion policy (1)

• pnpm-lock.yaml

• Files reviewed: 1/2 changed files
• Comments generated: 0 new
• Review effort level: Balanced