Improvements for GH copilot handlers

[kejatura-dev]

This PR makes improvements to GHCP handlers UX:

• Fixes the jsonpath escape quotes for the kubectl command invocation.
• Deployment of manifest success link is now routed to workloads page in Azure portal.
• Adds EU boundary header for RAG client. This is ensures compliance with EUDP.
  • Maintain list of EU regions as stated in azure docs (link in commented code)
• Adds useful telemetry for the handlers. --- No PII or user data are getting logged, only actions/commands.

• Improve plugin responses:

  • Kubectl command generation handler:
    

  • Create AKS cluster handler: