prober: AGP 9.2 / Gradle 9.6 / Kotlin 2.2.10, targetSdk 36, build 5

Lifts the build off the JDK-21 ceiling — the old AGP 8.7.3 pin could not run
on JDK 25. Two AGP-9 migration edits were required:

- AGP 9 ships built-in Kotlin support, so applying org.jetbrains.kotlin.android
  alongside it fails with "extension with name kotlin already registered";
  the alias is dropped (kotlin.compose / kotlin.serialization stay, they are
  separate compiler plugins).
- kotlinOptions { jvmTarget } came from that plugin and no longer resolves;
  AGP derives jvmTarget from compileOptions instead.

compileSdk/targetSdk 35 -> 36, since Android Studio ships API 36.1 by default
and installing 35 was avoidable churn. versionCode 5 so the reports from this
toolchain are attributable (build 4 was already archived from the old one).

Also fixes a missing comma that left .claude/settings.json invalid JSON.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

echolot-prober/app/build.gradle.kts

@@ -1,21 +1,20 @@
 plugins {
     alias(libs.plugins.android.application)
-    alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.kotlin.serialization)
 }
 
 android {
     namespace = "app.echo_lot.prober"
-    compileSdk = 35
+    compileSdk = 36
 
     defaultConfig {
         applicationId = "app.echo_lot.prober"
         minSdk = 26
-        targetSdk = 35
+        targetSdk = 36
         // Bump versionCode on EVERY deployed change — it is shown on screen and lands in the
         // JSON report as proberBuild, so a report is attributable to an exact prober build.
-        versionCode = 4
+        versionCode = 5
         versionName = "0.1.0"
     }
 
@@ -28,9 +27,6 @@ android {
         sourceCompatibility = JavaVersion.VERSION_17
         targetCompatibility = JavaVersion.VERSION_17
     }
-    kotlinOptions {
-        jvmTarget = "17"
-    }
     buildFeatures {
         compose = true
         aidl = true