foss build upgrade

mobile/android/app/build.gradle.kts

@@ -1,10 +1,10 @@
 plugins {
     id("com.android.application")
-    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
     id("dev.flutter.flutter-gradle-plugin")
+    id("org.jetbrains.kotlin.android")
 }
 
-android {
+configure<com.android.build.api.dsl.ApplicationExtension> {
     namespace = "in.commandlinecoding.elephant"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
@@ -24,11 +24,10 @@ android {
 
     buildTypes {
         getByName("release") {
-            // Signing with the debug keys for now, so `flutter run --release` works.
             signingConfig = signingConfigs.getByName("debug")
-
             isMinifyEnabled = true
             isShrinkResources = true
+
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro"
@@ -37,12 +36,14 @@ android {
     }
 }
 
-kotlin {
+flutter {
+    source = "../.."
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
     compilerOptions {
-        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+        jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17)
     }
 }
 
-flutter {
-    source = "../.."
-}
+dependencies {}

mobile/android/app/proguard-rules.pro

@@ -1,40 +1,43 @@
-# 1. RETAIN CORE METADATA (Required for debugging and stack traces)
+# 1. RETAIN CORE METADATA (Required for clean crash logs, stack traces, and reflection)
 -keepattributes *Annotation*,Signature,InnerClasses,EnclosingMethod,SourceFile,LineNumberTable
 -keepattributes RuntimeVisibleAnnotations
 
-# 2. PROTECT YOUR DATA MODELS (Strictly restricted to your package)
-# Only keep classes inside your own 'models' package. 
-# Do not keep everything globally (which was insecure).
+# 2. PROTECT DATA MODELS & SERIALIZATION SCHEMA (Restricted precisely to your package)
+# Keeps data models intact to prevent broken chats or missing message properties in release packages
 -keep class in.commandlinecoding.elephant.models.** { *; }
 
-# Safely handle JSON conversion methods
+# Safely preserve custom JSON serialization methods used by incoming/outgoing pipelines
 -keepclassmembers class in.commandlinecoding.elephant.models.** {
     public static *** fromJson(...);
     public *** toJson(...);
 }
 
-# 3. NETWORK FRAMEWORK PROTECTION
-# Dio requires internal fields to handle interceptors/requests correctly
+# 3. NETWORK FRAMEWORK PROTECTION (Preserves HTTP & Persistent WebSocket Engines)
+# Dio requires internal fields to handle interceptors, token rotations, and request configurations correctly
 -keep class dio.** { *; }
 -dontwarn dio.**
 
 # WebSockets require keeping the internal message stream/channel logic
 -keep class web_socket_channel.** { *; }
 -dontwarn web_socket_channel.**
+
+# Retain Gson serialization references if used by native plugin drivers
 -keep class com.google.gson.** { *; }
+-dontwarn com.google.gson.**
 
-# 4. FLUTTER ENGINE INTEGRATION (Minimized scope)
-# Keep only the specific plugin/embedding classes required for initialization
+# 4. FLUTTER ENGINE & NATIVE PLUGINS INTEGRATION (Minimized optimization scope)
+# Keep the core embedding engine classes required for application initialization
 -keep class io.flutter.embedding.** { *; }
 -keep class io.flutter.plugin.** { *; }
 -keep class io.flutter.util.** { *; }
 -keep class io.flutter.view.** { *; }
 
-# 5. PLAY CORE SILENCING (Keeps the build stable)
+# 5. FOSS COMPLIANCE: PLAY CORE HOOKS SILENCING
+# Tells R8 to safely ignore missing Google Play binary symbols without packing non-free SDKs
 -dontwarn com.google.android.play.core.**
 -dontwarn io.flutter.embedding.engine.deferredcomponents.**
 
-# 6. SECURITY: Remove unnecessary logging in release builds
+# 6. APP SECURITY & PERFORMANCE: Remove debugging logs from the release binary
 -assumenosideeffects class android.util.Log {
     public static int v(...);
     public static int d(...);

mobile/android/build.gradle.kts

@@ -15,10 +15,11 @@ subprojects {
     val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
     project.layout.buildDirectory.value(newSubprojectBuildDir)
 }
+
 subprojects {
     project.evaluationDependsOn(":app")
 }
 
 tasks.register<Delete>("clean") {
     delete(rootProject.layout.buildDirectory)
-}
+}