Adding kubernetes tools

[venmanyarun]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Explain how to reproduce the testing environment.

• npm run test
• Specific tool test (e.g., npm run test:tools:fs)
• Manual testing (describe below)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings (run npm run lint)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[sajeerzeji]

AI Review: Input Validation Gaps (Medium)
Several tools accept user input directly into shell commands without sanitization:

k8sDeleteResourceTool: args.resource, args.name
k8sDescribeTool: args.resource, args.name
k8sSwitchContextTool: args.context
Risk: Potential command injection if untrusted input is passed.

Fix: Add input validation regex or use array-based command construction more carefully.

[sajeerzeji]

AI Review: Suggested Improvements (Non-blocking), Maybe as another PR

1. Add JSON output option: Most tools output text; add -o json option for programmatic use
2. Better error messages: Parse kubectl errors to provide more actionable feedback
3. Dry-run support: For apply_manifest and delete_resource, add --dry-run option
4. Label selector helper: The labels parameter uses kubectl syntax; consider a structured alternative

[venmanyarun]

AI Review: Suggested Improvements (Non-blocking), Maybe as another PR

1. Add JSON output option: Most tools output text; add -o json option for programmatic use
2. Better error messages: Parse kubectl errors to provide more actionable feedback
3. Dry-run support: For apply_manifest and delete_resource, add --dry-run option
4. Label selector helper: The labels parameter uses kubectl syntax; consider a structured alternative

Updated Kubernetes tools

• Switched kubectl execution to execFileSync for safer array-based command execution.
• Added parsing and formatting for kubectl errors
• Added support for:

• k8s.list_pods
• k8s.list_services
• k8s.list_deployments
• k8s.get_namespaces

Added structured label selector support for:

• k8s.list_pods
• k8s.list_deployments

Added dryRun support for:

• k8s.apply_manifest
• k8s.delete_resource

Added stronger argument validation on resource/name/context/namespace values.
Schema support update object schemas can be represented.