fix: window session reset, model-row locking, startup order, hotkey release, counter, history gate, dictionary editor and search polish

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Sources/Sst/DictionaryView.swift

@@ -95,6 +95,7 @@ struct DictionaryView: View {
                 selection = nil
             }
         }
+        .onChange(of: model.searchFocusTick) { _, _ in searchFocused = true }
         .onChange(of: list.rows) { _, rows in
             if let s = selection, !rows.contains(where: { $0.id == s }) { selection = nil }
         }
@@ -215,7 +216,9 @@ private struct EntryEditor: View {
                 HStack(spacing: Space.s3) {
                     Spacer()
                     Button(Strings.cancel, action: onClose).buttonStyle(KeyButtonStyle())
+                        .keyboardShortcut(.cancelAction)
                     Button(Strings.save, action: save).buttonStyle(KeyButtonStyle(kind: .record)).disabled(!canSave)
+                        .keyboardShortcut(.defaultAction)
                 }
             }
             .padding(Layout.panelPadding)
@@ -246,6 +249,11 @@ private struct EntryEditor: View {
 
     private func save() {
         if let id = editingID {
+            guard list.rows.contains(where: { $0.id == id }) else {
+                list.errorMessage = Strings.entryGone
+                onClose()
+                return
+            }
             list.update(id: id, to: kind)
         } else {
             list.add(kind)