fix: Use type inference for ioctl to support both glibc and musl

The ioctl request type differs between glibc (c_ulong) and musl (c_int).
Using `as _` allows the compiler to infer the correct type for each target.

Author: inureyes

src/server/shell.rs

@@ -177,7 +177,8 @@ impl ShellSession {
 
                 // Set controlling terminal
                 // TIOCSCTTY with arg 0 means don't steal from another session
-                if nix::libc::ioctl(0, nix::libc::TIOCSCTTY as nix::libc::c_ulong, 0) < 0 {
+                // Use `as _` to handle type differences between glibc (c_ulong) and musl (c_int)
+                if nix::libc::ioctl(0, nix::libc::TIOCSCTTY as _, 0) < 0 {
                     return Err(std::io::Error::last_os_error());
                 }