Refactor

src/main.rs

@@ -1,3 +1,7 @@
+//! Kernel initialization and supervisor entry point.  
+//!
+//! This module sets up the global heap, initializes core subsystems (VGA, filesystem,
+//! scheduler, and logging), and starts initial processes.
 #![no_std]
 #![no_main]
 #![allow(static_mut_refs)]
@@ -43,7 +47,7 @@ pub const HEAP_SIZE: usize = 1024 * 1024; // 1Mo RAM
 static HEAP: Heap = Heap::empty();
 
 // Usize is assumed to be an u64 in the whole kernel
-const _: () = assert!(size_of::<usize>() == size_of::<u64>());
+const _: () = assert!(core::mem::size_of::<usize>() == core::mem::size_of::<u64>());
 
 #[unsafe(no_mangle)]
 pub extern "C" fn supervisor_mode_entry() {