feat: Add debug signing configuration for easier development and testing

app/build.gradle.kts

@@ -30,6 +30,15 @@ android {
         }
     }
 
+    signingConfigs {
+        getByName("debug") {
+            storeFile = file("debug.keystore")
+            storePassword = "android"
+            keyAlias = "androiddebugkey"
+            keyPassword = "android"
+        }
+    }
+
     buildTypes {
         release {
             isMinifyEnabled = false
@@ -37,6 +46,7 @@ android {
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
             )
+            signingConfig = signingConfigs.getByName("debug")
         }
     }
     compileOptions {