Nuupa v0.3.0

Commits incluidos

• Merge pull request #1 from zademy/develop (f0f3cb0)
• fix: descubrimiento multiplataforma de gestores (Windows) (e8ec600)
• feat: ventana fija y pipeline develop=build / master=release (1c1bcd9)
• refactor: kernel de Gestor + adapters, Actualizar todo en Rust (372361d)
• Add unsigned builds note to README (0a51199)

Full Changelog: https://github.com/zademy/nuupa/commits/v0.3.0