Page modem: reset hardware GPIO 16 + alerte mode configuration + reset au boot

- Bouton Reset Hardware (GPIO 16) avec verification ATI apres redemarrage
- Bandeau d'alerte rouge quand mode configuration actif (transmission desactivee)
- Reset automatique de modem_config_mode a 0 au boot (SARA/reboot/start.py)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

html/launcher.php

@@ -880,6 +880,13 @@ if ($type == "sara") {
     echo $output;
 }
 
+# SARA HARDWARE REBOOT (GPIO 16)
+if ($type == "sara_hardware_reboot") {
+    $command = 'sudo /usr/bin/python3 /var/www/nebuleair_pro_4g/SARA/reboot/hardware_reboot.py';
+    $output = shell_exec($command);
+    echo $output;
+}
+
 # SARA R4 COMMANDS (MQTT)
 if ($type == "sara_getMQTT_config") {
     $port=$_GET['port'];