feat(quickget): add Azure Linux (3.0) support

[flexiondotorg]

• Add os_info() case entry with a description for Azure Linux
• Add Azure Linux to os_support() list
• Implement releases_azurelinux() returning "3.0"
• Implement arch_azurelinux() returning "amd64 arm64"
• Implement get_azurelinux() using stable aka.ms download URLs:
  • https://aka.ms/azurelinux-3.0-x86_64.iso
  • https://aka.ms/azurelinux-3.0-aarch64.iso

Closes #1459

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• I have performed a self-review of my code

[cubic-dev-ai]

1 issue found across 1 file

Confidence score: 5/5

• Minor cleanup: get_azurelinux in quickget should declare ISO locally to avoid leaking a global value, but impact is low and easy to fix.
• Overall risk remains low because the issue is low severity (3/10) with limited user impact.
• Pay close attention to quickget - ensure ISO is scoped locally in get_azurelinux.

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="quickget">

<violation number="1" location="quickget:2015">
P3: Declare ISO as a local variable in get_azurelinux to avoid leaking a global ISO value into the rest of the script.</violation>
</file>

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