Add channels sidebar to Subscriptions on iPad regular width

On iPad in regular horizontal size class, the Subscriptions view now
shows a channels column next to the feed (mirroring macOS/tvOS) instead
of the floating channel strip. iPhone and compact-width iPad keep the
existing strip.

- Renames MacSubscriptionsSidebarRow to SubscriptionsSidebarRow and
  shares it across macOS and iOS.
- Uses a custom ScrollView-based sidebar on iPad to avoid iOS 26's
  sidebar background extension bleeding into the selection highlight.
- Forces inline toolbar title on iPad regular so scrolling either
  column behaves consistently.

Yattee/Views/Subscriptions/SubscriptionsSidebarRow.swift

@@ -1,22 +1,22 @@
 //
-//  MacSubscriptionsSidebarRow.swift
+//  SubscriptionsSidebarRow.swift
 //  Yattee
 //
-//  Compact row used in the macOS Subscriptions sidebar for the
+//  Compact row used in the Subscriptions sidebar (macOS and iPad) for the
 //  "All Channels" entry and each subscribed channel.
 //
 
-#if os(macOS)
 import SwiftUI
 import NukeUI
 
-struct MacSubscriptionsSidebarRow: View {
+struct SubscriptionsSidebarRow: View {
     let name: String
     let avatarURL: URL?
     let serverURL: URL?
     let authHeader: String?
     let channelID: String?
     let isAllChannels: Bool
+    var isSelected: Bool = false
 
     private let avatarSize: CGFloat = 28
 
@@ -37,6 +37,7 @@ struct MacSubscriptionsSidebarRow: View {
                 .clipShape(Circle())
 
             Text(name)
+                .fontWeight(isSelected ? .semibold : .regular)
                 .lineLimit(1)
 
             Spacer(minLength: 0)
@@ -74,4 +75,3 @@ struct MacSubscriptionsSidebarRow: View {
         }
     }
 }
-#endif

Yattee/Views/Subscriptions/SubscriptionsView.swift

@@ -13,6 +13,9 @@ struct SubscriptionsView: View {
     #if os(tvOS)
     @FocusState private var focusedVideoID: String?
     #endif
+    #if os(iOS)
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+    #endif
     @State private var feedCache = SubscriptionFeedCache.shared
     @State private var subscriptions: [Subscription] = []
     @State private var subscriptionsLoaded = false
@@ -239,13 +242,15 @@ struct SubscriptionsView: View {
                         .frame(minWidth: 300, maxWidth: .infinity, maxHeight: .infinity)
                     }
                     #else
-                    Group {
-                        switch layout {
-                        case .list:
-                            listContent
-                        case .grid:
-                            gridContent
-                        }
+                    if isIPadRegular && subscriptionsLoaded && subscriptions.count > 1 {
+                        HStack(spacing: 0) {
+                            iOSChannelsSidebar
+                                .frame(width: 260)
+
+                            Divider()
+
+                            feedLayout
+                                .frame(maxWidth: .infinity, maxHeight: .infinity)
                         }
                         .refreshable {
                             guard let appEnvironment else { return }
@@ -254,14 +259,24 @@ struct SubscriptionsView: View {
                             await feedCache.refresh(using: appEnvironment)
                             LoggingService.shared.info("Pull-to-refresh completed", category: .general)
                         }
+                    } else {
+                        feedLayout
+                            .refreshable {
+                                guard let appEnvironment else { return }
+                                LoggingService.shared.info("User initiated pull-to-refresh in Subscriptions view", category: .general)
+                                await loadSubscriptionsAsync()
+                                await feedCache.refresh(using: appEnvironment)
+                                LoggingService.shared.info("Pull-to-refresh completed", category: .general)
+                            }
+                    }
                     #endif
 
-                    // Bottom overlay for filter strip (iOS only)
+                    // Bottom overlay for filter strip (iOS only, compact width)
                     #if os(iOS)
                     VStack {
                         Spacer()
 
-                        if subscriptionsLoaded && subscriptions.count > 1 && channelStripSize != .disabled && !isShowingFullScreenError {
+                        if subscriptionsLoaded && subscriptions.count > 1 && channelStripSize != .disabled && !isShowingFullScreenError && !isIPadRegular {
                             bottomFloatingFilterStrip
                                 .transition(.move(edge: .bottom).combined(with: .opacity))
                         }
@@ -270,7 +285,11 @@ struct SubscriptionsView: View {
                 }
                 #if !os(tvOS)
                 .navigationTitle(String(localized: "tabs.subscriptions"))
+                #if os(iOS)
+                .toolbarTitleDisplayMode(isIPadRegular ? .inline : .inlineLarge)
+                #else
                 .toolbarTitleDisplayMode(.inlineLarge)
+                #endif
                 .toolbar {
                     ToolbarItem(placement: .primaryAction) {
                         Button {
@@ -742,23 +761,23 @@ struct SubscriptionsView: View {
     }
     #endif
 
-    // MARK: - macOS Channels Sidebar
+    // MARK: - Channels Sidebar (macOS / iPad)
 
-    #if os(macOS)
-    private static let macOSAllChannelsTag = "__all__"
+    #if !os(tvOS)
+    private static let sidebarAllChannelsTag = "__all__"
 
-    private var macOSSidebarSelection: Binding<String?> {
+    private var sidebarSelection: Binding<String?> {
         Binding(
-            get: { selectedChannelID ?? Self.macOSAllChannelsTag },
+            get: { selectedChannelID ?? Self.sidebarAllChannelsTag },
             set: { newValue in
-                selectedChannelID = (newValue == Self.macOSAllChannelsTag) ? nil : newValue
+                selectedChannelID = (newValue == Self.sidebarAllChannelsTag) ? nil : newValue
             }
         )
     }
 
-    private var macOSChannelsSidebar: some View {
-        List(selection: macOSSidebarSelection) {
-            MacSubscriptionsSidebarRow(
+    @ViewBuilder
+    private var channelsSidebarContent: some View {
+        SubscriptionsSidebarRow(
             name: String(localized: "subscriptions.allChannels"),
             avatarURL: nil,
             serverURL: nil,
@@ -766,7 +785,7 @@ struct SubscriptionsView: View {
             channelID: nil,
             isAllChannels: true
         )
-            .tag(Self.macOSAllChannelsTag)
+        .tag(Self.sidebarAllChannelsTag)
         .contextMenu {
             Button {
                 appEnvironment?.navigationCoordinator.navigate(to: .manageChannels)
@@ -776,7 +795,7 @@ struct SubscriptionsView: View {
         }
 
         ForEach(sortedSubscriptions, id: \.channelID) { subscription in
-                MacSubscriptionsSidebarRow(
+            SubscriptionsSidebarRow(
                 name: subscription.name,
                 avatarURL: subscription.avatarURL,
                 serverURL: yatteeServerURL,
@@ -801,11 +820,126 @@ struct SubscriptionsView: View {
             }
         }
     }
+    #endif
+
+    #if os(macOS)
+    private var macOSChannelsSidebar: some View {
+        List(selection: sidebarSelection) {
+            channelsSidebarContent
+        }
         .listStyle(.sidebar)
         .scrollContentBackground(.hidden)
     }
     #endif
 
+    #if os(iOS)
+    private var isIPadRegular: Bool {
+        UIDevice.current.userInterfaceIdiom == .pad && horizontalSizeClass == .regular
+    }
+
+    @ViewBuilder
+    private var feedLayout: some View {
+        Group {
+            switch layout {
+            case .list:
+                listContent
+            case .grid:
+                gridContent
+            }
+        }
+    }
+
+    private var iOSChannelsSidebar: some View {
+        ScrollView {
+            LazyVStack(spacing: 2) {
+                iOSSidebarRow(
+                    name: String(localized: "subscriptions.allChannels"),
+                    avatarURL: nil,
+                    serverURL: nil,
+                    authHeader: nil,
+                    channelID: nil,
+                    isAllChannels: true,
+                    isSelected: selectedChannelID == nil
+                ) {
+                    if selectedChannelID != nil { selectedChannelID = nil }
+                }
+                .contextMenu {
+                    Button {
+                        appEnvironment?.navigationCoordinator.navigate(to: .manageChannels)
+                    } label: {
+                        Label(String(localized: "sidebar.manageChannels"), systemImage: "person.2.badge.gearshape")
+                    }
+                }
+
+                ForEach(sortedSubscriptions, id: \.channelID) { subscription in
+                    iOSSidebarRow(
+                        name: subscription.name,
+                        avatarURL: subscription.avatarURL,
+                        serverURL: yatteeServerURL,
+                        authHeader: yatteeServerAuthHeader,
+                        channelID: subscription.channelID,
+                        isAllChannels: false,
+                        isSelected: selectedChannelID == subscription.channelID
+                    ) {
+                        if selectedChannelID == subscription.channelID {
+                            selectedChannelID = nil
+                        } else {
+                            selectedChannelID = subscription.channelID
+                        }
+                    }
+                    .contextMenu {
+                        Button {
+                            appEnvironment?.navigationCoordinator.navigate(
+                                to: .channel(subscription.channelID, subscription.contentSource)
+                            )
+                        } label: {
+                            Label(String(localized: "subscriptions.goToChannel"), systemImage: "person.circle")
+                        }
+                        Button(role: .destructive) {
+                            unsubscribeChannel(subscription.channelID)
+                        } label: {
+                            Label(String(localized: "channel.unsubscribe"), systemImage: "person.badge.minus")
+                        }
+                    }
+                }
+            }
+            .padding(.horizontal, 8)
+            .padding(.vertical, 8)
+        }
+    }
+
+    @ViewBuilder
+    private func iOSSidebarRow(
+        name: String,
+        avatarURL: URL?,
+        serverURL: URL?,
+        authHeader: String?,
+        channelID: String?,
+        isAllChannels: Bool,
+        isSelected: Bool,
+        action: @escaping () -> Void
+    ) -> some View {
+        Button(action: action) {
+            SubscriptionsSidebarRow(
+                name: name,
+                avatarURL: avatarURL,
+                serverURL: serverURL,
+                authHeader: authHeader,
+                channelID: channelID,
+                isAllChannels: isAllChannels,
+                isSelected: isSelected
+            )
+            .padding(.horizontal, 10)
+            .padding(.vertical, 6)
+            .background(
+                RoundedRectangle(cornerRadius: 8, style: .continuous)
+                    .fill(isSelected ? accentColor.opacity(0.2) : Color.clear)
+            )
+        }
+        .buttonStyle(.plain)
+    }
+    #endif
+
     // MARK: - Content Views
 
     private var subscriptionsQueueSource: QueueSource {