[feature/security] Add profile selector option

[avoidik]

Hello,

ArgoCD CLI has first-class support for contexts similar to kubectl contexts. I would like to request a feature to allow interaction with more than one ArgoCD instance via the MCP.

It could be implemented in different ways, here are a few ideas:

1. As a CLI option and a corresponding environment variable.
2. As a set of tools like argocd_get_current_profile to read the currently set context, argocd_list_profiles to list the available contexts, and finally argocd_set_profile to select a specific context from the list.

This will allow MCP users to switch between multiple ArgoCD instances with much less effort, while leaving the entire authentication concern out of scope — or building on the existing framework.

You should treat this as a security enhancement because no authentication token will be disclosed to the LLM memory context, and it eliminates the need to maintain a separate token-registry.json file.

Best

[avoidik]

This feature once implemented will resolve:

• I would love ability to authenticate against multiple instances #91
• does this server works with SSO integrated env #94
• Feature Request: SSO authentication similar to argocd cli login --sso #78

[avoidik]

Added a PR #127