fix(console): route background daemon startup logs to dmesg to keep interactive terminal pristine

kernel/src/arch/syscall.rs

@@ -240,7 +240,16 @@ pub extern "C" fn kernel_syscall_dispatcher(regs: &mut SyscallRegisters) {
             if !msg_ptr.is_null() && len > 0 && len < 4096 {
                 let slice = unsafe { core::slice::from_raw_parts(msg_ptr, len) };
                 if let Ok(s) = core::str::from_utf8(slice) {
-                    SerialPort.write_str(s);
+                    let is_daemon = unsafe {
+                        let sched = &*core::ptr::addr_of!(SCHEDULER);
+                        let name = sched.threads[sched.current_tid].name;
+                        name.starts_with("gui") || name.starts_with("proc") || name.starts_with("init")
+                    };
+                    if is_daemon {
+                        crate::drivers::dmesg::append_log(slice);
+                    } else {
+                        SerialPort.write_str(s);
+                    }
                     regs.rax = 0;
                     return;
                 }

servers/sh/main.cpp

@@ -603,10 +603,12 @@ static void handle_command(char *cmd) {
 }
 
 extern "C" void _start() {
-    for (int i = 0; i < 6; i++) {
+    // Yield until initial boot modules finish their startup messages
+    for (int i = 0; i < 15; i++) {
         sys_yield();
     }
 
+    // Clean screen after all boot logs are finished
     sys_log_debug("\033[2J\033[H", 7);
     print_fastfetch();