feat: Service Mode for Linux (#804)

src-tauri/src/utils/unix_helper.rs

@@ -0,0 +1,15 @@
+use std::process::Command;
+
+#[cfg(target_os = "linux")]
+pub fn linux_elevator() -> &'static str {
+    match Command::new("which").arg("pkexec").output() {
+        Ok(output) => {
+            if output.stdout.is_empty() {
+                "sudo"
+            } else {
+                "pkexec"
+            }
+        }
+        Err(_) => "sudo",
+    }
+}