fix: prevent message type crash in release builds (#623)

Author: mrehan27

messaginginapp/src/main/java/io/customer/messaginginapp/gist/data/AnonymousMessageManager.kt

@@ -1,7 +1,6 @@
 package io.customer.messaginginapp.gist.data
 
 import com.google.gson.Gson
-import com.google.gson.reflect.TypeToken
 import io.customer.messaginginapp.di.inAppMessagingManager
 import io.customer.messaginginapp.di.inAppPreferenceStore
 import io.customer.messaginginapp.gist.data.model.BroadcastFrequency
@@ -32,7 +31,6 @@ internal class AnonymousMessageManagerImpl() : AnonymousMessageManager {
 
     companion object {
         private const val ANONYMOUS_MESSAGES_EXPIRY_MINUTES = 60L
-        private val ANONYMOUS_MESSAGE_LIST_TYPE = object : TypeToken<List<Message>>() {}.type
     }
 
     override fun updateAnonymousMessagesLocalStore(messages: List<Message>) {
@@ -117,11 +115,13 @@ internal class AnonymousMessageManagerImpl() : AnonymousMessageManager {
                 inAppPreferenceStore.setAnonymousDismissed(anonymousId, true)
                 logger.debug("Marked anonymous message $anonymousId as permanently dismissed (count=1)")
             }
+
             anonymousDetails.delay > 0 -> {
                 val nextShowTimeMillis = System.currentTimeMillis() + (anonymousDetails.delay * 1000L)
                 inAppPreferenceStore.setAnonymousNextShowTime(anonymousId, nextShowTimeMillis)
                 logger.debug("Marked anonymous message $anonymousId as seen, shown $numberOfTimesShown times, next show time: ${java.util.Date(nextShowTimeMillis)}")
             }
+
             else -> {
                 logger.debug("Marked anonymous message $anonymousId as seen, shown $numberOfTimesShown times, no delay restriction")
             }
@@ -152,7 +152,9 @@ internal class AnonymousMessageManagerImpl() : AnonymousMessageManager {
         val anonymousMessagesJson = inAppPreferenceStore.getAnonymousMessages() ?: return emptyList()
 
         return try {
-            gson.fromJson<List<Message>>(anonymousMessagesJson, ANONYMOUS_MESSAGE_LIST_TYPE) ?: emptyList()
+            // Use Array<Message> to avoid R8/ProGuard issues with generic TypeToken
+            val messagesArray = gson.fromJson(anonymousMessagesJson, Array<Message>::class.java)
+            messagesArray?.toList() ?: emptyList()
         } catch (e: Exception) {
             logger.debug("Error parsing stored anonymous messages: ${e.message}")
             emptyList()