build: toolchain AGP 8.13.2 + Kotlin 2.2.20 + SDK 36 (v0.4.0)

- Gradle wrapper 8.11.1 -> 8.13 (exigido pelo AGP 8.13)
- AGP 8.7.3 -> 8.13.2; Kotlin 2.0.21 -> 2.2.20; KSP -> 2.2.20-2.0.4
- compileSdk/targetSdk 35 -> 36 (Android 16 como alvo real)
- Compose BOM 2025.06 -> 2026.06 (material3 1.4.0 estável; Expressive
  completo segue beta em 1.5.x e fica de fora a pedido: só estável)
- activity-compose 1.10.1, navigation-compose 2.9.0, lifecycle 2.9.0
- Room 2.6.1 -> 2.8.3; WorkManager 2.9.1 -> 2.10.1; DataStore 1.1.7
- kotlinx-serialization 1.8.1; coroutines 1.10.2
- versionCode 7 / versionName 0.4.0

Verificado: testes unitários verdes; APKs debug+release OK; em Android 16
(API 36, Pixel 6) upgrade in-place, criar nota -> autosave -> Room -> lista,
editor e chips de modo/formato sem crashes. README atualizado.

build.gradle.kts

@@ -1,8 +1,8 @@
 // Arquivo raiz — só declara plugins; versão centralizada aqui.
 plugins {
-    id("com.android.application") version "8.7.3" apply false
-    id("org.jetbrains.kotlin.android") version "2.0.21" apply false
-    id("org.jetbrains.kotlin.plugin.compose") version "2.0.21" apply false
-    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.21" apply false
-    id("com.google.devtools.ksp") version "2.0.21-1.0.28" apply false
+    id("com.android.application") version "8.13.2" apply false
+    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
+    id("org.jetbrains.kotlin.plugin.compose") version "2.2.20" apply false
+    id("org.jetbrains.kotlin.plugin.serialization") version "2.2.20" apply false
+    id("com.google.devtools.ksp") version "2.2.20-2.0.4" apply false
 }