Thanos update 2

Updated ProGuard rules for Flutter engine integration and FOSS compliance. Optimized the keep rules for embedding classes and corrected syntax for deferred components.

Author: mrsumanbiswas

mobile/android/app/proguard-rules.pro

@@ -25,14 +25,23 @@
 -keep class com.google.gson.** { *; }
 -dontwarn com.google.gson.**
 
-# 4. FLUTTER ENGINE & NATIVE PLUGINS INTEGRATION (Minimized optimization scope)
-# Keep the core embedding engine classes required for application initialization
--keep class io.flutter.embedding.** { *; }
+# 4. FLUTTER ENGINE & NATIVE PLUGINS INTEGRATION (Optimized optimization scope)
+# REPLACED BROAD EMBEDDING KEEP RULE: Allows R8 to strip unused embedding classes (like SplitInstall) 
+# while safely preserving the core infrastructure used during app startup.
+-keep class io.flutter.embedding.engine.FlutterJNI { *; }
+-keep class io.flutter.embedding.engine.loader.FlutterLoader { *; }
+-keep class io.flutter.embedding.android.FlutterActivity { *; }
+-keep class io.flutter.embedding.android.FlutterFragment { *; }
+-keep class io.flutter.embedding.android.FlutterView { *; }
 -keep class io.flutter.plugin.** { *; }
 -keep class io.flutter.util.** { *; }
 -keep class io.flutter.view.** { *; }
 
-# 5. FOSS COMPLIANCE: PLAY CORE HOOKS SILENCING
+# 5. FOSS COMPLIANCE & DEFERRED COMPONENTS REMOVAL
+# Correct R8 syntax to mark the Play Store manager and listeners as entry points that CAN be shrunk/deleted
+-keep,allowshrinking class io.flutter.embedding.engine.deferredcomponents.PlayStoreDeferredComponentManager { *; }
+-keep,allowshrinking class io.flutter.embedding.engine.deferredcomponents.PlayStoreDeferredComponentManager$FeatureInstallStateUpdatedListener { *; }
+
 # 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.**
@@ -43,4 +52,4 @@
     public static int d(...);
     public static int i(...);
     public static int w(...);
-}
+}