hotfix: r8 rule caused doc and image failed to extract

Author: kid1412621

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.3] - 2025-10-09
+
+### Fixed
+
+- Unable to summarize documents and images
+
 ## [1.0.2] - 2025-10-08
 
 ### Fixed

app/build.gradle.kts

@@ -18,8 +18,8 @@ android {
         applicationId = "me.nanova.summaryexpressive"
         minSdk = 33
         targetSdk = 36
-        versionCode = 39
-        versionName = "1.0.2"
+        versionCode = 40
+        versionName = "1.0.3"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

app/proguard-rules.pro

@@ -19,7 +19,7 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
--keepattributes Signature
+-keepattributes Signature,*Annotation*
 
 -keep class ai.koog.** { *; }
 
@@ -42,3 +42,12 @@
 -dontwarn java.lang.management.**
 -dontwarn com.fasterxml.jackson.core.JsonFactory
 -dontwarn com.fasterxml.jackson.core.JsonGenerator
+
+# Keep rules for KotlinX Serialization
+-keepclassmembers class ** {
+    @kotlinx.serialization.Serializable *;
+}
+-keep class **$$serializer { *; }
+
+# Keep specific data models to be safe, though the above rules should cover them.
+-keep class me.nanova.summaryexpressive.model.** { *; }

app/src/main/kotlin/me/nanova/summaryexpressive/model/ExtractedContent.kt

@@ -1,14 +1,11 @@
 package me.nanova.summaryexpressive.model
 
-import ai.koog.agents.core.tools.ToolResult
 import kotlinx.serialization.Serializable
 
 @Serializable
 data class ExtractedContent(
     val title: String = "Unknown",
     val author: String = "Unknown",
     val content: String,
-    val error: Boolean = false
-) : ToolResult {
-    override fun toStringDefault(): String = "title: $title, author: $author, content: $content"
-}
+    val error: Boolean = false,
+)