Fix WiFi setup flow and improve hotspot management

- Fix deviceID overwrite bug: preserve manual configuration across reboots
- Use deviceName as hotspot SSID for better device identification
- Implement live WiFi scanning instead of reading stale CSV data
- Improve hotspot management with dynamic connection detection
- Add database status updates on WiFi connection success/failure
- Hide password in logs for better security

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

connexion.sh

@@ -2,26 +2,49 @@
 echo "-------"
 echo "Start connexion shell script at $(date)"
 
+# Get deviceName from database for hotspot SSID
+DEVICE_NAME=$(sqlite3 /var/www/nebuleair_pro_4g/sqlite/sensors.db "SELECT value FROM config_table WHERE key='deviceName'")
+echo "Device Name: $DEVICE_NAME"
 
-#disable hotspot
-echo "Disable Hotspot:"
-sudo nmcli connection down Hotspot
-sleep 10
+# Find and disable any active hotspot connection
+echo "Disable Hotspot..."
+# Get all wireless connections that are currently active (excludes the target WiFi)
+ACTIVE_HOTSPOT=$(nmcli -t -f NAME,TYPE,DEVICE connection show --active | grep ':802-11-wireless:wlan0' | cut -d: -f1)
+
+if [ -n "$ACTIVE_HOTSPOT" ]; then
+    echo "Disabling hotspot connection: $ACTIVE_HOTSPOT"
+    sudo nmcli connection down "$ACTIVE_HOTSPOT"
+else
+    echo "No active hotspot found"
+fi
+
+sleep 5
 
 echo "Start connection with:"
 echo "SSID: $1"
-echo "Password: $2"
+echo "Password: [HIDDEN]"
 sudo nmcli device wifi connect "$1" password "$2"
 
-#check if connection is successfull
+# Check if connection is successful
 if [ $? -eq 0 ]; then
-    echo "Connection to $1 is successfull"
+    echo "Connection to $1 is successful"
+
+    # Update SQLite to reflect connected status
+    sqlite3 /var/www/nebuleair_pro_4g/sqlite/sensors.db "UPDATE config_table SET value='connected' WHERE key='WIFI_status'"
+    echo "Updated database: WIFI_status = connected"
 else
     echo "Connection to $1 failed"
     echo "Restarting hotspot..."
-    #enable hotspot
-    sudo nmcli connection up Hotspot
+
+    # Recreate hotspot with current deviceName as SSID
+    sudo nmcli device wifi hotspot ifname wlan0 ssid "$DEVICE_NAME" password nebuleaircfg
+
+    # Update SQLite to reflect hotspot mode
+    sqlite3 /var/www/nebuleair_pro_4g/sqlite/sensors.db "UPDATE config_table SET value='hotspot' WHERE key='WIFI_status'"
+    echo "Updated database: WIFI_status = hotspot"
+    echo "Hotspot restarted with SSID: $DEVICE_NAME"
 fi
+
 echo "End connexion shell script"
 echo "-------"