feat: Dynamically set simulation log file path using OS temporary directory and remove isSimulationRunning method.

main/src/main/java/sd/dashboard/SimulationProcessManager.java

@@ -95,18 +95,24 @@ public class SimulationProcessManager {
             builder = new ProcessBuilder(javaBin, "-cp", classpath, className);
         }
 
-        // this is a linux thing - not sure about windows
+        // get the OS temp folder
+        // Linux: /tmp/
+        // Windows: %AppData%\Local\Temp\
+        String tempDir = System.getProperty("java.io.tmpdir");
+
         String logName = className.substring(className.lastIndexOf('.') + 1) + (arg != null ? "-" + arg : "") + ".log";
-        File logFile = new File("/tmp/" + logName);
+
+        // use the (File parent, String child) constructor to handle slash/backslash
+        // automatically
+        File logFile = new File(tempDir, logName);
+
         builder.redirectOutput(logFile);
         builder.redirectError(logFile);
 
         Process process = builder.start();
         runningProcesses.add(process);
         System.out.println("Started " + className + (arg != null ? " " + arg : ""));
-    }
-
-    public boolean isSimulationRunning() {
-        return !runningProcesses.isEmpty() && runningProcesses.stream().anyMatch(Process::isAlive);
+        // print where the logs are actually going
+        System.out.println("Logs redirected to: " + logFile.getAbsolutePath());
     }
 }