DomainDig v3.5.0: Expand the Pro+ Data+ intelligence layer with deeper local historical context

and inferred enrichment.

- add derived intelligence fields for provider fingerprinting, classification,
  ownership transitions, hosting transitions, subdomain history, risk signals,
  and inferred timeline events
- expand DNS history beyond A/NS snapshots to retain A, AAAA, MX, NS, TXT, and
  CNAME change state
- persist enriched intelligence in snapshots and history entries so analysis is
  local-first and incremental
- add a dedicated Data+ Intelligence panel to current and historical domain
  detail views
- surface intelligence events in timeline rows and include Data+ changes in diff
  output
- preserve non-blocking inspection behavior by keeping enrichment additive to
  the main lookup path

This makes Pro+ materially deeper for investigative workflows by improving
historical ownership visibility, infrastructure context, hosting change
detection, subdomain intelligence, and explainable risk signals.

1 files changed, 13 insertions, 1 deletions

diff --git a/DomainDig/TimelineView.swift b/DomainDig/TimelineView.swift
index b163c76..8680d15 100644
--- a/DomainDig/TimelineView.swift
+++ b/DomainDig/TimelineView.swift
@@ -25,7 +25,7 @@ struct TimelineView: View {
                             NavigationLink {
                                 HistoryDetailView(viewModel: viewModel, entry: entry)
                             } label: {
-                                TimelineRow(summary: summary)
+                                TimelineRow(summary: summary, entry: entry)
                             }
                             .swipeActions(edge: .trailing, allowsFullSwipe: false) {
                                 Button {
@@ -102,6 +102,7 @@ struct TimelineView: View {
 private struct TimelineRow: View {
     @Environment(\.appDensity) private var appDensity
     let summary: SnapshotSummary
+    let entry: HistoryEntry
 
     var body: some View {
         VStack(alignment: .leading, spacing: appDensity.metrics.rowSpacing + 1) {
@@ -138,6 +139,17 @@ private struct TimelineRow: View {
             .font(appDensity.font(.caption2))
             .foregroundStyle(.secondary)
 
+            if !entry.intelligenceTimeline.isEmpty {
+                VStack(alignment: .leading, spacing: 4) {
+                    ForEach(Array(entry.intelligenceTimeline.prefix(2))) { event in
+                        Text("\(event.title): \(event.detail)")
+                            .font(appDensity.font(.caption2))
+                            .foregroundStyle(.secondary)
+                            .lineLimit(1)
+                    }
+                }
+            }
+
             HStack(spacing: 8) {
                 if let primaryIP = summary.primaryIP {
                     Text(primaryIP)