Show player toasts and drop the unused instance status

PlayerService's toast manager was never set, so stream refresh, missing
download and skip-to-next toasts were silently dropped. Wire it up in
AppEnvironment.

InstancesManager's per-instance status was never written since the v2
rewrite; account statuses already cover rejected and missing credentials
in the sources list, so remove it along with its unreachable row branch.

Yattee/Core/AppEnvironment.swift

@@ -451,6 +451,7 @@ final class AppEnvironment {
         self.toastManager = toast
         toast.setNavigationCoordinator(self.navigationCoordinator)
         remoteControl.setToastManager(toast)
+        player.setToastManager(toast)
         self.downloadManager.setToastManager(toast)
         self.downloadManager.setDownloadSettings(self.downloadSettings)
 

Yattee/Core/InstancesManager.swift

@@ -8,16 +8,6 @@
 import Foundation
 import SwiftUI
 
-/// Status of an instance's connectivity and authentication.
-enum InstanceStatus: Equatable {
-    /// Instance is online and working.
-    case online
-    /// Instance requires authentication but credentials are not provided.
-    case authRequired
-    /// Instance authentication failed (wrong credentials).
-    case authFailed
-}
-
 /// Manages the list of configured backend instances with iCloud sync.
 @MainActor
 @Observable
@@ -38,9 +28,6 @@ final class InstancesManager {
     private(set) var instances: [Instance] = []
     private(set) var activeInstanceID: UUID?
 
-    /// Current status of each instance, keyed by instance ID.
-    private(set) var instanceStatuses: [UUID: InstanceStatus] = [:]
-
     // MARK: - Initialization
 
     /// - Parameter defaults: where the configured instances are read and
@@ -319,13 +306,6 @@ final class InstancesManager {
         }
     }
 
-    // MARK: - Instance Status
-
-    /// Returns the current status of an instance.
-    func status(for instance: Instance) -> InstanceStatus {
-        instanceStatuses[instance.id] ?? .online
-    }
-
     /// The currently active instance for browsing content.
     /// Falls back to the first enabled instance if no active instance is set.
     var activeInstance: Instance? {

Yattee/Views/Settings/SourcesListView.swift

@@ -415,11 +415,8 @@ struct SourcesListView: View {
         appEnvironment?.needsCredentials(for: instance) ?? false
     }
 
-    /// Whether one of this source's logins is being refused by the server.
-    ///
-    /// The instance-level statuses below know nothing about accounts, so a
-    /// rejected login would otherwise show up nowhere the user looks for their
-    /// sources.
+    /// Whether one of this source's logins is being refused by the server, so a
+    /// rejected login shows up where the user looks for their sources.
     private func hasRejectedAccount(_ instance: Instance) -> Bool {
         guard let accountsManager = appEnvironment?.accountsManager else { return false }
 
@@ -443,19 +440,6 @@ struct SourcesListView: View {
             Label(String(localized: "sources.status.authRequired"), systemImage: "key.fill")
                 .font(.caption2)
                 .foregroundStyle(.orange)
-        } else if let status = instancesManager?.status(for: instance) {
-            switch status {
-            case .authFailed:
-                Label(String(localized: "sources.status.authFailed"), systemImage: "exclamationmark.triangle.fill")
-                    .font(.caption2)
-                    .foregroundStyle(.orange)
-            case .authRequired:
-                Label(String(localized: "sources.status.authRequired"), systemImage: "key.fill")
-                    .font(.caption2)
-                    .foregroundStyle(.orange)
-            default:
-                EmptyView()
-            }
         }
     }