feat(cli): add collect-debug-info

[fl64]

Description

Added new collect-debug-info subcommand to collect comprehensive debug information for VirtualMachines, including configuration, events, and optional pod logs.

Why do we need it, and what problem does it solve?

When debugging VirtualMachine issues, operators need to collect various Kubernetes resources, events, and logs manually, which is time-consuming and error-prone. There was no unified way to gather all relevant debug information for a VM in a single command.

What is the expected result?

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.

Changelog entries

section: module
type: feature
summary: add collect-debug-info
impact_level: low