chore: remove update logs UI from preferences

Remove the Show/Hide Logs button and logs view from the Updates preferences
tab. Keep the logging infrastructure in SparkleUpdater for diagnostics,
but don't display it in the UI.

Sources/Views/PreferencesView.swift

@@ -257,64 +257,11 @@ private struct UpdatesPreferencesView: View {
                 .foregroundColor(.secondary)
                 .padding(.top, 4)
 
-            Divider()
-                .padding(.vertical, 8)
-
-            Button(action: { sparkleUpdater.showLogs.toggle() }) {
-                Label(sparkleUpdater.showLogs ? "Hide Logs" : "Show Logs", systemImage: "terminal.fill")
-            }
-
-            if sparkleUpdater.showLogs {
-                logsView
-            }
-
             Spacer()
         }
         .toggleStyle(.switch)
         .frame(maxWidth: .infinity, alignment: .leading)
     }
-
-    private var logsView: some View {
-        VStack(alignment: .leading, spacing: 8) {
-            Text("Update Logs")
-                .font(.caption)
-                .fontWeight(.semibold)
-                .foregroundColor(.secondary)
-
-            ScrollView {
-                VStack(alignment: .leading, spacing: 4) {
-                    if sparkleUpdater.logMessages.isEmpty {
-                        Text("No logs yet. Check for updates to see activity.")
-                            .font(.caption)
-                            .foregroundColor(.secondary)
-                            .italic()
-                    } else {
-                        ForEach(sparkleUpdater.logMessages, id: \.self) { message in
-                            Text(message)
-                                .font(.caption)
-                                .foregroundColor(.secondary)
-                                .lineLimit(3)
-                                .textSelection(.enabled)
-                        }
-                    }
-                }
-                .frame(maxWidth: .infinity, alignment: .leading)
-                .padding(8)
-            }
-            .frame(height: 200)
-            .background(Color(nsColor: .controlBackgroundColor))
-            .cornerRadius(6)
-            .border(.separator, width: 1)
-
-            Button(action: {
-                sparkleUpdater.logMessages.removeAll()
-            }) {
-                Label("Clear Logs", systemImage: "trash")
-                    .font(.caption)
-            }
-            .disabled(sparkleUpdater.logMessages.isEmpty)
-        }
-    }
 }
 
 private struct NotificationsPreferencesView: View {