Update proguard rules for kotlin serialization

app/proguard-rules.pro

@@ -14,37 +14,28 @@
 
 # Uncomment this to preserve the line number information for
 # debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
+-keepattributes SourceFile,LineNumberTable
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
-# Kotlin Serialization: https://github.com/Kotlin/kotlinx.serialization#android
+# General Kotlin Serialization rules
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.AnnotationsKt
 
-# Keep `Companion` object fields of serializable classes.
-# This avoids serializer lookup through `getDeclaredClasses` as done for named companion objects.
--if @kotlinx.serialization.Serializable class **
--keepclassmembers class <1> {
-    static <1>$Companion Companion;
+# Kotlinx Serialization JSON-specific rules
+-keepclassmembers class kotlinx.serialization.json.** {
+    *** Companion;
 }
-
-# Keep `serializer()` on companion objects (both default and named) of serializable classes.
--if @kotlinx.serialization.Serializable class ** {
-    static **$* *;
-}
--keepclassmembers class <2>$<3> {
+-keepclasseswithmembers class kotlinx.serialization.json.** {
     kotlinx.serialization.KSerializer serializer(...);
 }
 
-# Keep `INSTANCE.serializer()` of serializable objects.
--if @kotlinx.serialization.Serializable class ** {
-    public static ** INSTANCE;
-}
--keepclassmembers class <1> {
-    public static <1> INSTANCE;
-    kotlinx.serialization.KSerializer serializer(...);
-}
+# Keep kotlinx.serialization internals
+-keep class kotlinx.serialization.** { *; }
 
-# @Serializable and @Polymorphic are used at runtime for polymorphic serialization.
--keepattributes RuntimeVisibleAnnotations,AnnotationDefault
+# Keep classes annotated with @Serializable
+-keepclassmembers class * {
+    @kotlinx.serialization.Serializable *;
+}