Publish a one-command installer with update and rollback support

[PurpleSentinel]

Parent: #23

Summary

Package release assets and automate safe deployment to a connected MicroPython board.

Acceptance criteria

• Install every required module and binary asset in a defined order.
• Detect board compatibility and available storage before writing.
• Preserve user settings by default with an explicit clean-install option.
• Verify file hashes and boot health after installation.
• Retain or document a recoverable rollback path and complement issue Replace setup instructions with a complete MicroPython deployment procedure #5.

Roadmap group

Data, configuration, and maintenance