feat: add VNC toggle to dashboard

- Add x11vnc + noVNC container with Traefik reverse proxy
- Add /api/vnc_status and toggle_vnc action to FastAPI
- Add VNC toggle button to BotVPS dashboard
- VNC off by default, controlled via dashboard

main.py

@@ -120,8 +120,23 @@ async def run_action(data: dict, is_auth: bool = Depends(verify_password)):
         return {"status": "success", "message": "Cache do servidor limpo com sucesso."}
     if action_type == "reboot_vps":
         return {"status": "error", "message": "⚠️ Reboot via Web desabilitado por segurança. Use o terminal SSH."}
+    if action_type == "toggle_vnc":
+        import subprocess
+        result = subprocess.run(["docker", "ps", "-q", "-f", "name=vps-vnc"], capture_output=True, text=True)
+        if result.stdout.strip():
+            subprocess.run(["docker", "stop", "vps-vnc"], capture_output=True)
+            return {"status": "success", "message": "VNC desligado.", "vnc_status": "off"}
+        else:
+            subprocess.run(["docker", "start", "vps-vnc"], capture_output=True)
+            return {"status": "success", "message": "VNC ligado. https://vnc.claw.reifonas.cloud/vnc.html", "vnc_status": "on"}
     return {"status": "error", "message": f"Ação {action_type} desconhecida."}
 
+@app.get("/api/vnc_status")
+async def vnc_status():
+    import subprocess
+    result = subprocess.run(["docker", "ps", "-q", "-f", "name=vps-vnc"], capture_output=True, text=True)
+    return {"vnc_status": "on" if result.stdout.strip() else "off"}
+
 @app.get("/api/test_llm")
 async def test_llm_latency(is_auth: bool = Depends(verify_password)):
     t0 = time.time()