Fix BLE scan + touch logic + UUID + version read

- Client: change passive BLE scan to active scan (setActiveScan(true))
  Server puts name/UUID in scan response; passive scan never
  received them, so isAdvertisingService() and getName() failed.
- Server: add INPUT_PULLUP on touch pins to prevent floating
  triggers when sensors disconnected
- Server: update BLE UUID characteristic in SET_ID handler
  (pUuidChar->setValue) so reconnecting clients see correct UUID
- Server: touch logic changed from t1Active/t2Active to
  !t1Active/!t2Active (door closed = relay ON)
- Android: flushReadBuffer before VERSION? to discard stale
  boot log output; use Regex for BUILD_NR parsing
- copy_firmware.sh: copy to firmware/server/ and firmware/client/
  subdirectories to match EspFlasher.assetPath()
- version.txt: server=20 client=5

src/main.cpp

@@ -48,6 +48,7 @@ CRGB leds[NUM_LEDS];
 #define FIRMWARE_VERSION FIRMWARE_VERSION_SERVER
 
 NimBLECharacteristic *pCharacteristic;
+NimBLECharacteristic *pUuidChar;
 bool relay1State = false;
 bool relay2State = false;
 
@@ -401,8 +402,8 @@ void setup() {
         ESP_LOGD(TAG, "Generated new UUID");
     }
 
-    pinMode(TOUCH1_PIN, INPUT);
-    pinMode(TOUCH2_PIN, INPUT);
+    pinMode(TOUCH1_PIN, INPUT_PULLUP);
+    pinMode(TOUCH2_PIN, INPUT_PULLUP);
     pinMode(BUTTON_PIN, INPUT);
     pinMode(RELAY1_PIN, OUTPUT);
     pinMode(RELAY2_PIN, OUTPUT);
@@ -424,7 +425,7 @@ void setup() {
     );
     pCharacteristic->setCallbacks(new MyCharacteristicCallbacks());
 
-    NimBLECharacteristic *pUuidChar = pService->createCharacteristic(
+    pUuidChar = pService->createCharacteristic(
         UUID_CHAR_UUID,
         NIMBLE_PROPERTY::READ
     );
@@ -488,6 +489,7 @@ void loop() {
             } else if (serialBuf == "ID?") {
                 Serial.println("SylDa_Server");
             } else if (serialBuf == "VERSION?") {
+                Serial.flush();
                 Serial.print("BUILD_NR:");
                 Serial.println(FIRMWARE_VERSION);
             } else if (serialBuf.startsWith("SET_KEY:")) {
@@ -515,6 +517,7 @@ void loop() {
                     preferences.putBytes(NVS_UUID_NAME, deviceUuid, ESP_UUID_LEN);
                     preferences.end();
                     uuidProvisioned = true;
+                    pUuidChar->setValue(deviceUuid, ESP_UUID_LEN);
                     Serial.println("OK");
                     Serial.println("UUID stored in NVS");
                 } else {
@@ -585,9 +588,9 @@ void loop() {
     bool btnActive = (millis() - btnChange > DEBOUNCE_MS) && btnStable;
 
     if (!otaInProgress) {
-        relay1State = t1Active || btnActive ||
+        relay1State = !t1Active || btnActive ||
                       (connActive[0] && bleRelay1[0]) || (connActive[1] && bleRelay1[1]);
-        relay2State = t2Active ||
+        relay2State = !t2Active ||
                       (connActive[0] && bleRelay2[0]) || (connActive[1] && bleRelay2[1]);
     } else {
         relay1State = false;