fix(recovery): preflight restore items before mutating state

Add validation pass that checks all selected recovery items before any
restore operations begin. This prevents partial in-memory restore success
when a later item fails.

Map helper-backed restore destination conflicts to restore-specific
rejection paths instead of falling back to generic execution-unavailable
messages.

Bump version to 1.0.1 and update CHANGELOG with release notes.

Apps/AtlasApp/Sources/AtlasApp/AtlasAppModel.swift

@@ -100,11 +100,11 @@ final class AtlasAppModel: ObservableObject {
     }
 
     var appVersion: String {
-        Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "1.0.0"
+        Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "1.0.1"
     }
 
     var appBuild: String {
-        Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "1"
+        Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "2"
     }
 
     func checkForUpdate() async {