feat(quickemu): warn on unstable TSC for macOS Ventura+ on AMD

[flexiondotorg]

• Add check_macos_tsc_stability() to detect unstable TSC on Linux hosts with
  AuthenticAMD CPUs when launching macOS Ventura+ guests
• Log a clear warning to the VM log and prompt interactively to continue or
  abort to avoid guest freezes
• Abort by default in non-interactive mode to prevent unattended VM hangs
• Add --ignore-tsc-warning to bypass the check and invoke the check during
  vm_boot so it runs early in startup

Closes #1273

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Documentation (updates the documentation)

Checklist:

• I have performed a self-review of my code
• I have added comments to my code, particularly in hard-to-understand sections
• I have made corresponding changes to the documentation (remove if no documentation changes were required)

[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.