Complete v4.5.0: Run Sweep intent, detail deep link, and portfolio widget

Finishes the v4.5.0 "Home Screen & Shortcuts reach" scope that the tag shipped
partially:

- Add RunSweepIntent (opens the app and runs refreshAllTrackedDomains via the
  in-process router) and expose it in DomainDigShortcuts.
- Extend the domaindig:// scheme with `sweep` and `domain` (detail) actions;
  route .detail to present TrackedDomainDetailView and .sweep to refresh the
  watchlist. Move DomainDigDeepLink into Shared/ so the widget can build links.
- Add a WidgetKit extension (DomainDigWidgetExtension) with small/medium/large
  Portfolio widgets showing health counts, per-domain status, and certificate
  countdowns; tapping a domain deep-links into its detail.
- Share portfolio state via an App Group (group.net.cleberg.DomainDig): the app
  writes a DomainDigWidgetData snapshot on launch/foreground and on watchlist
  changes and reloads timelines; the widget reads the same store.

1 files changed, 2 insertions, 0 deletions

diff --git a/DomainDig/DomainDigApp.swift b/DomainDig/DomainDigApp.swift
index ff40caf..8716806 100644
--- a/DomainDig/DomainDigApp.swift
+++ b/DomainDig/DomainDigApp.swift
@@ -39,6 +39,7 @@ struct DomainDigApp: App {
                     cloudSyncService.scheduleSyncIfNeeded(trigger: .launch)
                     viewModel.monitoringStatusMessage = DomainMonitoringScheduler.shared.syncSchedule()
                     IntegrationService.shared.processQueueNow()
+                    viewModel.refreshWidgetData()
                 }
                 .onReceive(NotificationCenter.default.publisher(for: .cloudSyncDidApplyChanges)) { _ in
                     viewModel.refreshPersistedData()
@@ -57,6 +58,7 @@ struct DomainDigApp: App {
             cloudSyncService.scheduleSyncIfNeeded(trigger: .launch)
             viewModel.monitoringStatusMessage = DomainMonitoringScheduler.shared.syncSchedule()
             IntegrationService.shared.processQueueNow()
+            viewModel.refreshWidgetData()
         }
     }
 }