feat: Add release signing configuration for build process

app/build.gradle.kts

@@ -19,6 +19,16 @@ android {
         vectorDrawables { useSupportLibrary = true }
     }
 
+    signingConfigs {
+        create("release") {
+            // Using debug keystore for testing - replace with your production keystore
+            storeFile = file("${System.getProperty("user.home")}/.android/debug.keystore")
+            storePassword = "android"
+            keyAlias = "androiddebugkey"
+            keyPassword = "android"
+        }
+    }
+
     buildTypes {
         release {
             isMinifyEnabled = false
@@ -26,6 +36,7 @@ android {
                     getDefaultProguardFile("proguard-android-optimize.txt"),
                     "proguard-rules.pro"
             )
+            signingConfig = signingConfigs.getByName("release")
         }
     }
     compileOptions {