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

KanbanMobileUITests/SettingsAboutUITests.swift

@@ -10,12 +10,10 @@ final class SettingsAboutUITests: XCTestCase {
 
         app.tabBars.buttons["Settings"].tap()
 
-        // The About section is last in the form (`SettingsTabView`'s own comment: "Last section
-        // by convention"), below the Backup section — a couple of speculative swipes settle the
+        // The About section is the only section in the form — a speculative swipe settles the
         // list near the bottom before anything here is queried, harmless if the content already
         // fit on screen.
         app.swipeUp()
-        app.swipeUp()
 
         // `IndieAbout`'s version line is three sibling `Text` views (prefix, the tappable
         // "1.0-<build>" link, suffix) — none of them wrapped in a control that would flatten them