v1.5.0 r1

[1.5.0 r1] - 2024-11-30

Added

• Interactive shell (Eshell) with command support
• System shutdown functionality (ACPI/APM)
• Port I/O utilities in sys/ports.h
• Colored boot messages
• Shell commands: clear, shutdown, help
• Welcome message on boot

Changed

• Improved boot sequence with status messages
• Enhanced display color support
• Reorganized kernel initialization

Fixed

• Double screen clear in kernel main
• Namespace conflicts with color constants