Add Gradle wrapper and configuration files for Android project

- Created gradle-wrapper.properties to specify Gradle distribution details.
- Added gradlew and gradlew.bat scripts for executing Gradle tasks.
- Introduced settings.gradle for project configuration and dependency management.
- Added assetlinks.json for Android App Links support.

tx-android/app/build.gradle

@@ -0,0 +1,20 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    namespace 'com.hdrdevs.turnosxpress'
+    compileSdk 36
+
+    defaultConfig {
+        applicationId 'com.hdrdevs.turnosxpress'
+        minSdk 23
+        targetSdk 35
+        versionCode 1
+        versionName '1.0.0'
+    }
+}
+
+dependencies {
+    implementation 'com.google.androidbrowserhelper:androidbrowserhelper:2.7.2'
+}