Backup bows out of the phone — the zipped-share future replaces it, later

IndieBackup comes out whole: the package, the Backup directory, the Settings section, the .kanbanbackup document type and its onOpenURL restore path. Settings is now the About section alone. The Files-app keys stay — they serve local-board visibility, not backups. Board sharing as a zipped archive is the planned replacement and is deliberately not started here.

Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY

KanbanMobile/Screens/SettingsTabView.swift

@@ -1,19 +1,13 @@
 import SwiftUI
 import IndieAbout
-import IndieBackup
 
-/// Backup/restore (indie-backup skill) and the About section (indie-about skill).
+/// The About section (indie-about skill).
 struct SettingsTabView: View {
     @Environment(BoardIndexStore.self) private var index
-    @Environment(\.backupController) private var backupController
 
     var body: some View {
         NavigationStack {
             Form {
-                backupSection
-
-                // Last section by convention. The version label doubles as the changelog link,
-                // which is why the changelog sits in its dedicated slot and not in `documents`.
                 // Same voice as the Mac app's `AboutBox.configuration`; the changelog itself is
                 // the phone app's own (see project.yml — separate product, separate 1.0).
                 Section {
@@ -27,36 +21,7 @@ struct SettingsTabView: View {
             .navigationTitle("Settings")
         }
         // Idempotent (BoardIndexStore.start()), and harmless if BoardsTabView already called it —
-        // this tab can be the first one the user opens, and `backupController` only ever appears
-        // once `index.home` resolves.
+        // this tab can be the first one the user opens.
         .task { index.start() }
     }
-
-    /// `backupController` is `nil` until `MobileApp` has a resolved `CloudHome` to build one from
-    /// — which is also exactly the condition under which there is a `Documents/` folder to back
-    /// up. Everything short of that gets the same quiet explanation rather than a section that
-    /// looks broken or, worse, a crash on a nil root.
-    @ViewBuilder
-    private var backupSection: some View {
-        if let backupController {
-            BackupsSectionView(controller: backupController)
-        } else {
-            Section {
-                switch index.phase {
-                case .idle, .loading:
-                    LabeledContent("Backup") {
-                        ProgressView()
-                    }
-                case .ready:
-                    // `.ready` is both cases now: the run with no iCloud at all, and the runloop turn
-                    // `backupController` lags `index.home` by (MobileApp's `.task(id:)`). Backup is
-                    // still iCloud-only — a known gap now that local boards exist.
-                    Label("Backup and restore need iCloud Drive.", systemImage: "icloud.slash")
-                        .foregroundStyle(.secondary)
-                }
-            } footer: {
-                Text("Sign into iCloud in Settings, then come back here to back up your boards.")
-            }
-        }
-    }
 }