fix(ui): тёмный сплэш с фирменной иконкой вместо белого экрана

- Theme.Radiola -> тёмная (windowBackground #0C1410), прозрачные системные бары
- Theme.Radiola.Splash (core-splashscreen): фон #0C1410 + иконка приложения
- installSplashScreen() в MainActivity; тема сплэша на launcher-активити

app/build.gradle.kts

@@ -61,6 +61,7 @@ android {
 
 dependencies {
     implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.core.splashscreen)
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation(libs.androidx.lifecycle.viewmodel.compose)
     implementation(libs.androidx.activity.compose)

app/src/main/AndroidManifest.xml

@@ -25,7 +25,7 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
-            android:theme="@style/Theme.Radiola"
+            android:theme="@style/Theme.Radiola.Splash"
             android:configChanges="orientation|screenSize|smallestScreenSize">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/com/radiola/MainActivity.kt

@@ -5,6 +5,7 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
@@ -45,6 +46,7 @@ class MainActivity : ComponentActivity() {
     lateinit var tokenDataStore: TokenDataStore
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen()
         super.onCreate(savedInstanceState)
         startService(Intent(this, PlayerService::class.java))
         lifecycleScope.launch {

app/src/main/res/values/colors.xml

@@ -5,4 +5,6 @@
     <color name="teal_200">#FF03DAC5</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="brand_bg">#FF0C1410</color>
+    <color name="brand_accent">#FFA8E05F</color>
 </resources>

app/src/main/res/values/themes.xml

@@ -1,3 +1,17 @@
 <resources>
-    <style name="Theme.Radiola" parent="android:Theme.Material.Light.NoActionBar" />
+    <!-- Основная тема: тёмный фирменный фон (нет белого экрана при холодном старте) -->
+    <style name="Theme.Radiola" parent="android:Theme.Material.NoActionBar">
+        <item name="android:windowBackground">@color/brand_bg</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+        <item name="android:windowLightStatusBar">false</item>
+    </style>
+
+    <!-- Сплэш (Android 12+ и бэкпорт через core-splashscreen):
+         тёмный фон + наша иконка, затем переход в основную тему. -->
+    <style name="Theme.Radiola.Splash" parent="Theme.SplashScreen">
+        <item name="windowSplashScreenBackground">@color/brand_bg</item>
+        <item name="windowSplashScreenAnimatedIcon">@mipmap/ic_launcher</item>
+        <item name="postSplashScreenTheme">@style/Theme.Radiola</item>
+    </style>
 </resources>

gradle/libs.versions.toml

@@ -25,6 +25,7 @@ coroutinesTest = "1.8.1"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+androidx-core-splashscreen = { group = "androidx.core", name = "core-splashscreen", version = "1.0.1" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
 androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }