Session Cache Implementation

Nucleic-Session: B2346642-3353-4BD5-9DE2-A8B77BD66C98
Co-authored-by: Nucleic <[email protected]>

NucleicRemote/NucleicRemote/Views/SessionsView.swift

@@ -28,6 +28,23 @@ struct SessionsView: View {
                             : "Waiting to connect to your Mac…"))
                 } else {
                     List {
+                        // Offline: the rows below are the saved history, not a live view — say so.
+                        if !store.connectivity.isLive {
+                            Section {
+                                HStack(spacing: 8) {
+                                    Image(systemName: "wifi.slash").foregroundStyle(.secondary)
+                                    Text("Offline — showing saved chats")
+                                        .font(.footnote).foregroundStyle(.secondary)
+                                    Spacer(minLength: 8)
+                                    if store.isPaired {
+                                        Button("Reconnect") { store.reconnect() }
+                                            .font(.caption.weight(.semibold))
+                                            .buttonStyle(.borderless)
+                                    }
+                                }
+                            }
+                            .listRowBackground(Color.clear)
+                        }
                         ForEach(grouped, id: \.title) { group in
                             Section(group.title.uppercased()) {
                                 ForEach(group.rows, id: \.sessionID) { summary in