(Micro-Fix) Auto-install uv in setup-python.sh if missing

[JVSCHANDRADITHYA]

Description

Improve setup-python.sh to automatically install uv when it is not already available, instead of exiting with an error.

This makes the setup script more robust for fresh environments and aligns its behavior with quickstart.sh.

Type of Change

• Bug fix (non-breaking change that fixes an issue)

Related Issues

N/A

[Adds on top of #623]

Changes Made

• Added auto-install logic for uv when it is missing
• Supports installation via curl or wget
• Fails with a clear error if neither downloader is available
• Preserves existing behavior once uv is installed

Testing

Describe the tests you ran to verify your changes:

• Unit tests pass (cd core && pytest tests/)
• Lint passes (cd core && ruff check .)
• Manual testing performed

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Screenshots (if applicable)

[sid-stack001]

Works, the failed test is due to the absence of requirement-dev.txt. It should work. No problem with the shell script.

[JVSCHANDRADITHYA]

Synced with main branch, all checks passed

Thank you @sid-stack001 for testing this out

[RichardTang-Aden]

Hi setup-python.sh is deprecated and uv will be automatically installed with quickstart.sh. We will cleanup setup-python.sh ASAP