[Feature]: Add APT Distribution for mr-manager

[mowi12]

What problem are you trying to solve?

Linux users (Debian/Ubuntu) lack a native package manager installation method. Manual installation reduces usability and trust.

Proposed solution

Provide a .deb package and distribute via an APT repository compatible with Debian-based systems.

Use standard tooling such as APT workflows, including:

• Building .deb artifacts
• Hosting a package repository
• Signing packages and repository metadata
• Providing setup instructions for users

Alternatives considered

• Manual binary distribution
• Python-only installation via pip
• Submitting directly to Debian repositories (long-term option)

Expected impact

Enables native Linux installation, improves trust via signed packages, and simplifies system-wide CLI usage.

Relevant config/code snippet