desktop/devtools: habilitar F12/Ctrl+Shift+I e menu de contexto para abrir DevTools

- src-tauri: adiciona comando open_devtools que chama window.open_devtools()
- frontend: listeners para F12/Ctrl+Shift+I e botão direito com Ctrl/Shift

Facilita depuração de UI no executável Tauri.

apps/desktop/src-tauri/src/lib.rs

@@ -32,6 +32,12 @@ fn stop_machine_agent(state: tauri::State<AgentRuntime>) -> Result<(), String> {
     Ok(())
 }
 
+#[tauri::command]
+fn open_devtools(window: tauri::WebviewWindow) -> Result<(), String> {
+    window.open_devtools();
+    Ok(())
+}
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
@@ -44,7 +50,8 @@ pub fn run() {
             collect_machine_profile,
             collect_machine_inventory,
             start_machine_agent,
-            stop_machine_agent
+            stop_machine_agent,
+            open_devtools
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

apps/desktop/src/main.tsx

@@ -769,3 +769,26 @@ function StatusBadge({ status }: { status: string | null }) {
 
 const root = document.getElementById("root") || (() => { const el = document.createElement("div"); el.id = "root"; document.body.appendChild(el); return el })()
 createRoot(root).render(<App />)
+  // DevTools shortcut (F12 / Ctrl+Shift+I) and context menu with modifier
+  useEffect(() => {
+    function onKeyDown(e: KeyboardEvent) {
+      const key = (e.key || '').toLowerCase()
+      if (key === 'f12' || (e.ctrlKey && e.shiftKey && key === 'i')) {
+        invoke('open_devtools').catch(() => {})
+        e.preventDefault()
+      }
+    }
+    function onContextMenu(e: MouseEvent) {
+      // Evita abrir sempre: use Ctrl ou Shift + botão direito para abrir DevTools
+      if (e.ctrlKey || e.shiftKey) {
+        invoke('open_devtools').catch(() => {})
+        e.preventDefault()
+      }
+    }
+    window.addEventListener('keydown', onKeyDown)
+    window.addEventListener('contextmenu', onContextMenu)
+    return () => {
+      window.removeEventListener('keydown', onKeyDown)
+      window.removeEventListener('contextmenu', onContextMenu)
+    }
+  }, [])