refactor(@angular/cli): add architect target discovery to list_projects MCP tool

[clydin]

Enhance the list_projects MCP tool to extract and provide configured architect targets (e.g., lint, e2e, serve, deploy) in the tool's output schema.

[gemini-code-assist]

Code Review

This pull request adds the ability to extract and list available architect targets (such as build, test, and lint) for Angular projects within the MCP tools. The changes include updating the project output schema, adding a new use case to the documentation, and implementing the logic to retrieve target keys from the workspace configuration. A new test suite, projects_spec.ts, was also introduced to verify that targets are correctly identified and returned. The reviewer provided feedback to improve the formatting of user-facing strings by removing commas immediately following the 'e.g.' abbreviation.

[clydin]

This PR was merged into the repository. The changes were merged into the following branches:

• main: d32bfd9
• 22.0.x: 2410393

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