fix(PTY): Fix Steam Plugin

- Ommit NixOS modification for now.
- Add error checking to pty.rs if the command does not exist.

core/systems/launcher/interactive_process.gd

@@ -19,14 +19,14 @@ var logger := Log.get_logger("InteractiveProcess", Log.LEVEL.INFO)
 
 func _init(command: String, cmd_args: PackedStringArray = []) -> void:
 	# Hack for steam plugin running steamcmd on NixOS
-	if command.ends_with("steamcmd.sh"):
-		cmd = "steam-run"
-		args = PackedStringArray([command])
-		args.append_array(cmd_args)
-		return
-
-	cmd = command
-	args = cmd_args
+	#if command.ends_with("steamcmd.sh"):
+		#cmd = "steam-run"
+		#args = PackedStringArray([command])
+		#args.append_array(cmd_args)
+		#return
+
+	self.cmd = command
+	self.args = cmd_args
 
 
 ## Start the interactive process

extensions/core/src/system/pty.rs

@@ -182,13 +182,23 @@ impl Pty {
         // Spawn a task to run the command
         let signals_tx = self.tx.clone();
         RUNTIME.spawn(async move {
-            let mut binding = Command::new(command);
+            let mut binding = Command::new(command.clone());
             let cmd = binding
                 .args(args)
                 .stdin(stdin)
                 .stdout(stdout)
                 .stderr(stderr);
-            let child = cmd.spawn().unwrap();
+            let child = match cmd.spawn() {
+                Ok(child) => child,
+                Err(e) => {
+                    log::error!("Failed to spawn child process with command: {command:?} {e:?}");
+                    let signal = Signal::Finished { exit_code: -1 };
+                    if let Err(e) = signals_tx.send(signal) {
+                        log::error!("Error sending exit code: {e:?}");
+                    }
+                    return;
+                }
+            };
 
             // Get the PID of the process and emit a started signal
             let pid = child.id();