feat(v3.4.0): add backup, restore, and data portability

• introduce versioned DomainDig backup format
• add full backup export/import with merge and replace modes
• implement data validation and conflict handling
• add partial exports for tracked domains, workflows, and history
• add Data Portability settings section
• support Files/iCloud Drive import and export
• harden migrations for evolving local models
• extend CLI with backup export and validation

1 files changed, 3 insertions, 1 deletions

diff --git a/DomainDig/PaywallView.swift b/DomainDig/PaywallView.swift
index d0293a8..90578c7 100644
--- a/DomainDig/PaywallView.swift
+++ b/DomainDig/PaywallView.swift
@@ -10,7 +10,7 @@ struct PaywallView: View {
         NavigationStack {
             List {
                 Section {
-                    Text("Pro unlocks workflows, scale, and exports. Data+ adds deeper external intelligence with local-first usage credits and no account requirement.")
+                    Text("Pro unlocks workflows, scale, monitoring automation, and exports. Data+ adds deeper external intelligence with local-first usage credits and no account requirement.")
                         .font(appDensity.font(.body, design: .default))
                         .foregroundStyle(.secondary)
                         .fixedSize(horizontal: false, vertical: true)
@@ -20,6 +20,8 @@ struct PaywallView: View {
                     featureRow("Unlimited tracked domains")
                     featureRow("Workflows")
                     featureRow("Larger batch sizes")
+                    featureRow("Background monitoring")
+                    featureRow("Local alerts")
                     featureRow("Advanced exports")
                 }