Fix review feedback: clarify activated description and always save digitalSwitchMode

Co-authored-by: dorkmo <[email protected]>

Author: Copilot

TankAlarm-112025-Client-BluesOpta/README.md

@@ -96,8 +96,8 @@ Float switches can be configured as either normally-open (NO) or normally-closed
   - **NO (Normally-Open)**: Switch is open by default, closes when fluid reaches the switch position
   - **NC (Normally-Closed)**: Switch is closed by default, opens when fluid reaches the switch position
 - **Digital Trigger**: When to trigger the alarm
-  - "activated": Alarm when switch is activated (fluid present for NO, fluid absent for NC)
-  - "not_activated": Alarm when switch is not activated
+  - "activated": Alarm when switch is activated (fluid present)
+  - "not_activated": Alarm when switch is not activated (fluid absent)
 
 **Wiring Note**: For both NO and NC float switches, connect the switch between the digital input pin and GND. The Arduino uses an internal pull-up resistor, and the software interprets the signal based on your configured switch mode. The wiring is the same for both modes - only the software interpretation changes.
 

TankAlarm-112025-Client-BluesOpta/TankAlarm-112025-Client-BluesOpta.ino

@@ -836,10 +836,8 @@ static bool saveConfigToFlash(const ClientConfig &cfg) {
     if (cfg.tanks[i].digitalTrigger[0] != '\0') {
       t["digitalTrigger"] = cfg.tanks[i].digitalTrigger;
     }
-    // Save digital switch mode (NO/NC) for digital sensors
-    if (cfg.tanks[i].sensorType == SENSOR_DIGITAL) {
-      t["digitalSwitchMode"] = cfg.tanks[i].digitalSwitchMode;
-    }
+    // Save digital switch mode (NO/NC)
+    t["digitalSwitchMode"] = cfg.tanks[i].digitalSwitchMode;
   }
 
   #if defined(ARDUINO_OPTA) || defined(ARDUINO_ARCH_MBED)