🌍 Add matrix build for multi-platform binary releases

[szmyty]

Title: 🌍 Add matrix build for multi-platform binary releases

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Description

Implement a GitHub Actions matrix build to compile binaries for multiple platforms.

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Goals

• Produce binaries for:

  • Linux
  • macOS
  • Windows

• Enable cross-platform distribution

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Requirements

• Extend workflow to include matrix:

ubuntu-latest
macos-latest
windows-latest

• Build release binaries:

cargo build --release

• Upload artifacts

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Optional (encouraged)

• Use cross for consistent builds

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Acceptance Criteria

• Matrix builds run successfully
• Binaries generated for all platforms
• Artifacts uploaded in workflow