refactor(@angular/cli): import type improvements & mcp cleanups

[lekhmanrus]

PR Checklist

Please check to confirm your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular-cli/blob/main/CONTRIBUTING.md#-commit-message-guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

TypeScript type imports in several CLI and MCP-related files are declared using regular import statements.
Additionally, utility logic such as findAngularJsonDir was defined in each file instead of being reused from a shared.

What is the new behavior?

• Replaced regular imports with import type for type-only dependencies across the Angular CLI and MCP tooling codebase.
• No functional or runtime behavior changes - this is a refactor for cleaner, safer, and more efficient imports.
• Moved the findAngularJsonDir helper function to a shared utils for better reusability and consistency.

Does this PR introduce a breaking change?

• Yes
• No

Other information

[alan-agius4]

LGTM, thanks for this

[alan-agius4]

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

• main: a9c700a

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