feat(ui): add FavoritesScreen and FavoritesViewModel

app/src/main/java/com/radiola/ui/favorites/FavoritesScreen.kt

@@ -0,0 +1,58 @@
+package com.radiola.ui.favorites
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.hilt.navigation.compose.hiltViewModel
+import com.radiola.ui.components.EmptyState
+import com.radiola.ui.components.StationCard
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun FavoritesScreen(
+    onStationClick: (Int) -> Unit,
+    modifier: Modifier = Modifier,
+    viewModel: FavoritesViewModel = hiltViewModel()
+) {
+    val favorites by viewModel.favorites.collectAsState()
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text("Избранное") },
+                colors = TopAppBarDefaults.topAppBarColors(
+                    containerColor = MaterialTheme.colorScheme.background
+                )
+            )
+        }
+    ) { padding ->
+        if (favorites.isEmpty()) {
+            EmptyState(
+                message = "Нет избранных станций",
+                modifier = Modifier.fillMaxSize().padding(padding)
+            )
+        } else {
+            LazyVerticalGrid(
+                columns = GridCells.Fixed(2),
+                modifier = modifier
+                    .fillMaxSize()
+                    .padding(padding),
+                contentPadding = PaddingValues(16.dp),
+                horizontalArrangement = Arrangement.spacedBy(12.dp),
+                verticalArrangement = Arrangement.spacedBy(12.dp)
+            ) {
+                items(favorites, key = { it.id }) { station ->
+                    StationCard(
+                        station = station,
+                        onClick = { onStationClick(station.id) }
+                    )
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/radiola/ui/favorites/FavoritesViewModel.kt

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+package com.radiola.ui.favorites
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.radiola.domain.model.Station
+import com.radiola.domain.repository.FavoritesRepository
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.stateIn
+import javax.inject.Inject
+
+@HiltViewModel
+class FavoritesViewModel @Inject constructor(
+    favoritesRepository: FavoritesRepository
+) : ViewModel() {
+
+    val favorites: StateFlow<List<Station>> = favoritesRepository.getFavorites()
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), emptyList())
+}