fix: resolve compiler and Gradle deprecation warnings

- GrapeRankPublisher: dTag() is non-null (""), so the Elvis on the
  grouped target was dead code; skip blank targets via ifBlank instead.
- amethyst: migrate deprecated resourceConfigurations to
  androidResources.localeFilters (same locale qualifiers).
- desktopApp: replace deprecated compose.desktop.uiTestJUnit4 accessor
  with the direct org.jetbrains.compose.ui:ui-test-junit4 dependency.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016GMqkg1ndvFihEwZcENiRs

amethyst/build.gradle.kts

@@ -87,8 +87,10 @@ android {
         vectorDrawables {
             useSupportLibrary = true
         }
-        @Suppress("UnstableApiUsage")
-        resourceConfigurations +=
+    }
+
+    androidResources {
+        localeFilters +=
             listOf(
                 "ar",
                 "ar-rSA",

desktopApp/build.gradle.kts

@@ -98,7 +98,7 @@ dependencies {
     testImplementation(libs.okhttp)
 
     // Compose UI testing (createComposeRule / onNodeWithText / etc.)
-    testImplementation(compose.desktop.uiTestJUnit4)
+    testImplementation(libs.jetbrains.compose.ui.test.junit4)
 }
 
 compose.desktop {

gradle/libs.versions.toml

@@ -169,6 +169,7 @@ jetbrains-compose-runtime = { module = "org.jetbrains.compose.runtime:runtime",
 jetbrains-compose-ui = { module = "org.jetbrains.compose.ui:ui", version.ref = "jetbrainsCompose" }
 jetbrains-compose-ui-tooling = { module = "org.jetbrains.compose.ui:ui-tooling", version.ref = "jetbrainsCompose" }
 jetbrains-compose-ui-tooling-preview = { module = "org.jetbrains.compose.ui:ui-tooling-preview", version.ref = "jetbrainsCompose" }
+jetbrains-compose-ui-test-junit4 = { module = "org.jetbrains.compose.ui:ui-test-junit4", version.ref = "jetbrainsCompose" }
 google-mlkit-genai-proofreading = { group = "com.google.mlkit", name = "genai-proofreading", version.ref = "genaiProofreading" }
 google-mlkit-genai-prompt = { group = "com.google.mlkit", name = "genai-prompt", version.ref = "genaiPrompt" }
 google-mlkit-genai-rewriting = { group = "com.google.mlkit", name = "genai-rewriting", version.ref = "genaiRewriting" }

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/graperank/GrapeRankPublisher.kt

@@ -122,7 +122,7 @@ class GrapeRankPublisher(
             .filterIsInstance<ContactCardEvent>()
             .groupBy { it.aboutUser() }
             .mapNotNull { (target, cards) ->
-                val t = target ?: return@mapNotNull null
+                val t = target.ifBlank { return@mapNotNull null }
                 t to (cards.maxByOrNull { it.createdAt } ?: return@mapNotNull null)
             }.toMap()