[Tcode-Motion]

🎯 What:

Extracted logic from the overly long cmd_install function in python-installer/techscript/__main__.py into small, focused private helper functions (_check_platform_and_existing_install, _download_release_asset, _install_binary_and_setup_path, and _print_install_completion).

💡 Why:

Improves code readability, maintainability, and testability of the Python installer entry point by separating concerns into distinct stages (platform check, release download, binary installation, and completion formatting).

✅ Verification:

Added unit tests covering cmd_install in python-installer/tests/test_installer.py and ran pytest python-installer/tests as well as cargo test --workspace --all-targets.

✨ Result:

The cmd_install function is reduced from ~90 lines down to ~15 lines, and test coverage is added for CLI installation workflows.

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PR created automatically by Jules for task 17785767462715855338 started by @Tcode-Motion

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