refactor(android): extract MinstrelTopAppBar (DRY 3b)

Ten screens duplicated the same TopAppBar + Text(title) +
optional-back-arrow + MainAppBarActions sandwich. Extract into
MinstrelTopAppBar(title, navController, currentRouteName, onBack,
actions) at shared/widgets/. Library's tab row still composes
above it inside a Column; Library's Shuffle button slots into the
extra actions trailing-lambda; drill-down screens pass onBack for
the back arrow; root tabs leave onBack null.

Net: -48 lines across 10 screens, +50 lines for the helper.

SearchScreen keeps its own TopAppBar (title is a SearchField
composable, not a string).

Per-screen TrackActionsViewModel snackbar wiring (Library/Search/
detail screens) was intentionally NOT consolidated here: each
hiltViewModel() returns a different VM instance than the shell-
scoped one already in ShellScaffold, so dedup belongs in 3c
(shell-scope the VM via CompositionLocal) rather than freezing the
current duplicate into a helper.

android/app/src/main/java/com/fabledsword/minstrel/admin/ui/AdminLandingScreen.kt

@@ -11,13 +11,10 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.material3.ElevatedCard
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
@@ -29,7 +26,6 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewModelScope
 import androidx.navigation.NavHostController
-import com.composables.icons.lucide.ArrowLeft
 import com.composables.icons.lucide.Inbox
 import com.composables.icons.lucide.Lucide
 import com.composables.icons.lucide.TriangleAlert
@@ -44,7 +40,7 @@ import com.fabledsword.minstrel.nav.AdminRequests
 import com.fabledsword.minstrel.nav.AdminUsers
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.LoadingCentered
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Job
@@ -104,7 +100,6 @@ class AdminLandingViewModel @Inject constructor(
 
 // ─── Screen ──────────────────────────────────────────────────────────
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun AdminLandingScreen(
     navController: NavHostController,
@@ -114,19 +109,11 @@ fun AdminLandingScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Admin") },
-                navigationIcon = {
-                    IconButton(onClick = { navController.popBackStack() }) {
-                        Icon(Lucide.ArrowLeft, contentDescription = "Back")
-                    }
-                },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = Admin::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Admin",
+                navController = navController,
+                currentRouteName = Admin::class.qualifiedName,
+                onBack = { navController.popBackStack() },
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/admin/ui/AdminQuarantineScreen.kt

@@ -12,14 +12,11 @@ import androidx.compose.material3.AssistChip
 import androidx.compose.material3.Button
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
@@ -29,13 +26,11 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
-import com.composables.icons.lucide.ArrowLeft
-import com.composables.icons.lucide.Lucide
 import com.fabledsword.minstrel.models.AdminQuarantineItemRef
 import com.fabledsword.minstrel.nav.AdminQuarantine
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.LoadingCentered
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -48,19 +43,11 @@ fun AdminQuarantineScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Admin · Quarantine") },
-                navigationIcon = {
-                    IconButton(onClick = { navController.popBackStack() }) {
-                        Icon(Lucide.ArrowLeft, contentDescription = "Back")
-                    }
-                },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = AdminQuarantine::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Admin · Quarantine",
+                navController = navController,
+                currentRouteName = AdminQuarantine::class.qualifiedName,
+                onBack = { navController.popBackStack() },
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/admin/ui/AdminRequestsScreen.kt

@@ -12,13 +12,10 @@ import androidx.compose.material3.AssistChip
 import androidx.compose.material3.Button
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
@@ -28,13 +25,11 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
-import com.composables.icons.lucide.ArrowLeft
-import com.composables.icons.lucide.Lucide
 import com.fabledsword.minstrel.models.RequestRef
 import com.fabledsword.minstrel.nav.AdminRequests
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.LoadingCentered
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -47,19 +42,11 @@ fun AdminRequestsScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Admin · Requests") },
-                navigationIcon = {
-                    IconButton(onClick = { navController.popBackStack() }) {
-                        Icon(Lucide.ArrowLeft, contentDescription = "Back")
-                    }
-                },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = AdminRequests::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Admin · Requests",
+                navController = navController,
+                currentRouteName = AdminRequests::class.qualifiedName,
+                onBack = { navController.popBackStack() },
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/admin/ui/AdminUsersScreen.kt

@@ -14,12 +14,10 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
 import com.composables.icons.lucide.Lucide
-import com.composables.icons.lucide.ArrowLeft
 import com.composables.icons.lucide.Copy
 import com.composables.icons.lucide.KeyRound
 import com.composables.icons.lucide.Plus
 import com.composables.icons.lucide.Trash2
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
@@ -30,7 +28,6 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
-import androidx.compose.material3.TopAppBar
 import android.content.ClipData
 import androidx.compose.ui.platform.ClipEntry
 import androidx.compose.ui.platform.LocalClipboard
@@ -52,11 +49,10 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
 import com.fabledsword.minstrel.models.AdminUserRef
 import com.fabledsword.minstrel.nav.AdminUsers
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 import kotlinx.coroutines.launch
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun AdminUsersScreen(
     navController: NavHostController,
@@ -117,7 +113,6 @@ fun AdminUsersScreen(
     }
 }
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 private fun AdminUsersScaffold(
     navController: NavHostController,
@@ -134,19 +129,11 @@ private fun AdminUsersScaffold(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Admin · Users") },
-                navigationIcon = {
-                    IconButton(onClick = { navController.popBackStack() }) {
-                        Icon(Lucide.ArrowLeft, contentDescription = "Back")
-                    }
-                },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = AdminUsers::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Admin · Users",
+                navController = navController,
+                currentRouteName = AdminUsers::class.qualifiedName,
+                onBack = { navController.popBackStack() },
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/discover/ui/DiscoverScreen.kt

@@ -23,7 +23,6 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
@@ -35,7 +34,6 @@ import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.navigation.NavHostController
-import com.composables.icons.lucide.ArrowLeft
 import com.composables.icons.lucide.Lucide
 import com.composables.icons.lucide.Search as LucideSearch
 import com.fabledsword.minstrel.discover.data.RequestOutcome
@@ -44,7 +42,7 @@ import com.fabledsword.minstrel.models.LidarrRequestKind
 import com.fabledsword.minstrel.models.LidarrSearchResultRef
 import com.fabledsword.minstrel.nav.Discover
 import com.fabledsword.minstrel.shared.widgets.LoadingCentered
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 import kotlinx.coroutines.launch
 
@@ -63,19 +61,11 @@ fun DiscoverScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Discover") },
-                navigationIcon = {
-                    IconButton(onClick = { navController.popBackStack() }) {
-                        Icon(Lucide.ArrowLeft, contentDescription = "Back")
-                    }
-                },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = Discover::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Discover",
+                navController = navController,
+                currentRouteName = Discover::class.qualifiedName,
+                onBack = { navController.popBackStack() },
             )
         },
         snackbarHost = { SnackbarHost(snackbar) },

android/app/src/main/java/com/fabledsword/minstrel/home/ui/HomeScreen.kt

@@ -21,14 +21,12 @@ import androidx.compose.foundation.lazy.LazyRow
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -70,7 +68,7 @@ import com.fabledsword.minstrel.playlists.widgets.PlaylistPlaceholderCard
 import com.fabledsword.minstrel.shared.UiState
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.HorizontalScrollRow
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 import com.fabledsword.minstrel.shared.widgets.SkeletonAlbumTile
 import com.fabledsword.minstrel.shared.widgets.SkeletonArtistTile
@@ -236,7 +234,6 @@ class HomeViewModel @Inject constructor(
 
 // ─── Screen ──────────────────────────────────────────────────────────
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun HomeScreen(
     navController: NavHostController,
@@ -249,14 +246,10 @@ fun HomeScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Minstrel") },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = Home::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Minstrel",
+                navController = navController,
+                currentRouteName = Home::class.qualifiedName,
             )
         },
         snackbarHost = { SnackbarHost(snackbarHostState) },

android/app/src/main/java/com/fabledsword/minstrel/library/ui/LibraryScreen.kt

@@ -22,7 +22,6 @@ import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Tab
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -49,7 +48,7 @@ import com.composables.icons.lucide.Shuffle
 import com.fabledsword.minstrel.shared.UiState
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.ErrorRetry
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 import com.fabledsword.minstrel.shared.widgets.SkeletonAlbumTile
 import com.fabledsword.minstrel.shared.widgets.SkeletonArtistTile
@@ -88,8 +87,10 @@ fun LibraryScreen(
         modifier = Modifier.fillMaxSize(),
         topBar = {
             Column {
-                TopAppBar(
-                    title = { Text("Library") },
+                MinstrelTopAppBar(
+                    title = "Library",
+                    navController = navController,
+                    currentRouteName = Library::class.qualifiedName,
                     actions = {
                         IconButton(onClick = viewModel::shuffleAll) {
                             Icon(
@@ -98,10 +99,6 @@ fun LibraryScreen(
                                 tint = MaterialTheme.colorScheme.onSurface,
                             )
                         }
-                        MainAppBarActions(
-                            navController = navController,
-                            currentRouteName = Library::class.qualifiedName,
-                        )
                     },
                 )
                 PrimaryScrollableTabRow(

android/app/src/main/java/com/fabledsword/minstrel/playlists/ui/PlaylistsListScreen.kt

@@ -9,11 +9,9 @@ import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.GridItemSpan
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.grid.items
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
@@ -33,7 +31,7 @@ import com.fabledsword.minstrel.shared.UiState
 import com.fabledsword.minstrel.playlists.widgets.PlaylistCard
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.LoadingCentered
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Job
@@ -95,7 +93,6 @@ class PlaylistsListViewModel @Inject constructor(
 
 // ─── Screen ──────────────────────────────────────────────────────────
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun PlaylistsListScreen(
     navController: NavHostController,
@@ -104,14 +101,10 @@ fun PlaylistsListScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Playlists") },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = Playlists::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Playlists",
+                navController = navController,
+                currentRouteName = Playlists::class.qualifiedName,
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/requests/ui/RequestsScreen.kt

@@ -14,16 +14,13 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.AssistChip
 import androidx.compose.material3.Button
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -36,7 +33,6 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
-import com.composables.icons.lucide.ArrowLeft
 import com.composables.icons.lucide.Disc3
 import com.composables.icons.lucide.LibraryBig
 import com.composables.icons.lucide.Lucide
@@ -51,10 +47,9 @@ import com.fabledsword.minstrel.nav.ArtistDetail
 import com.fabledsword.minstrel.nav.Requests
 import com.fabledsword.minstrel.shared.widgets.EmptyState
 import com.fabledsword.minstrel.shared.widgets.LoadingCentered
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.shared.widgets.PullToRefreshScaffold
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun RequestsScreen(
     navController: NavHostController,
@@ -64,19 +59,11 @@ fun RequestsScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Your requests") },
-                navigationIcon = {
-                    IconButton(onClick = { navController.popBackStack() }) {
-                        Icon(Lucide.ArrowLeft, contentDescription = "Back")
-                    }
-                },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = Requests::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Your requests",
+                navController = navController,
+                currentRouteName = Requests::class.qualifiedName,
+                onBack = { navController.popBackStack() },
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/settings/ui/SettingsScreen.kt

@@ -30,7 +30,6 @@ import androidx.compose.material3.SegmentedButtonDefaults
 import androidx.compose.material3.SingleChoiceSegmentedButtonRow
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
-import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -55,11 +54,10 @@ import com.fabledsword.minstrel.nav.Admin
 import com.fabledsword.minstrel.nav.Requests
 import com.fabledsword.minstrel.nav.Settings as SettingsRoute
 import com.fabledsword.minstrel.nav.ServerUrl
-import com.fabledsword.minstrel.shared.widgets.MainAppBarActions
+import com.fabledsword.minstrel.shared.widgets.MinstrelTopAppBar
 import com.fabledsword.minstrel.theme.ThemeMode
 import com.fabledsword.minstrel.theme.ThemePreferenceViewModel
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun SettingsScreen(
     navController: NavHostController,
@@ -82,14 +80,10 @@ fun SettingsScreen(
     Scaffold(
         modifier = Modifier.fillMaxSize(),
         topBar = {
-            TopAppBar(
-                title = { Text("Settings") },
-                actions = {
-                    MainAppBarActions(
-                        navController = navController,
-                        currentRouteName = SettingsRoute::class.qualifiedName,
-                    )
-                },
+            MinstrelTopAppBar(
+                title = "Settings",
+                navController = navController,
+                currentRouteName = SettingsRoute::class.qualifiedName,
             )
         },
     ) { inner ->

android/app/src/main/java/com/fabledsword/minstrel/shared/widgets/MinstrelTopAppBar.kt

@@ -0,0 +1,50 @@
+package com.fabledsword.minstrel.shared.widgets
+
+import androidx.compose.foundation.layout.RowScope
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.navigation.NavHostController
+import com.composables.icons.lucide.ArrowLeft
+import com.composables.icons.lucide.Lucide
+
+/**
+ * The standard Minstrel top app bar — a `Text(title)` on the left, the
+ * universal [MainAppBarActions] row on the right, optionally preceded
+ * by extra screen-specific actions and a back arrow.
+ *
+ * Replaces the TopAppBar + title + navigationIcon + MainAppBarActions
+ * sandwich that was duplicated across ~10 screens. Library wraps this
+ * in a `Column` with its tab row; drill-down screens pass [onBack]
+ * for the back arrow; Library passes its Shuffle button via [actions].
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MinstrelTopAppBar(
+    title: String,
+    navController: NavHostController,
+    currentRouteName: String?,
+    onBack: (() -> Unit)? = null,
+    actions: @Composable RowScope.() -> Unit = {},
+) {
+    TopAppBar(
+        title = { Text(title) },
+        navigationIcon = {
+            if (onBack != null) {
+                IconButton(onClick = onBack) {
+                    Icon(Lucide.ArrowLeft, contentDescription = "Back")
+                }
+            }
+        },
+        actions = {
+            actions()
+            MainAppBarActions(
+                navController = navController,
+                currentRouteName = currentRouteName,
+            )
+        },
+    )
+}