refactor: comprehensive Kotlin conversion and documentation pass

Co-authored-by: Gemini CLI <gemini-cli@google.com>

Author: thejaustin

libcore/io/build.gradle

@@ -27,11 +27,6 @@ android {
     kotlinOptions {
         jvmTarget = "1.8"
     }
-    sourceSets {
-        main {
-            aidl.srcDirs = ['src/main/aidl']
-        }
-    }
 }
 
 dependencies {

libserver/src/main/java/io/github/muntashirakon/AppManager/server/common/ConfigParams.kt

@@ -34,11 +34,11 @@ class ConfigParams {
 
     override fun toString(): String {
         return "ConfigParam{" +
-                "mIsDebug=" + isDebug +
-                ", mPath='" + path + '\'' +
-                ", mRunInBackground=" + isRunInBackground +
-                ", mToken='" + token + '\'' +
-                ", mUid='" + uid + '\'' +
+                "mIsDebug=$isDebug" +
+                ", mPath='$path'" +
+                ", mRunInBackground=$isRunInBackground" +
+                ", mToken='$token'" +
+                ", mUid='$uid'" +
                 '}'
     }
 

versions.gradle

@@ -8,7 +8,7 @@ ext {
 
     // Gradle plugins
     agp_version = '8.13.2'
-    kotlin_version = '1.9.25'
+    kotlin_version = '2.0.21'
 
     // Library dependencies
     activity_version = "1.11.0" // API 21-22 support dropped in 1.12.x