style(swift): run swiftformat + swiftlint autocorrect

apps/macos/Sources/OpenClaw/SessionMenuPreviewView.swift

@@ -183,7 +183,6 @@ struct SessionMenuPreviewView: View {
         .frame(width: max(1, self.width), alignment: .leading)
     }
 
-    @ViewBuilder
     private func previewRow(_ item: SessionPreviewItem) -> some View {
         HStack(alignment: .top, spacing: 4) {
             Text(item.role.label)
@@ -212,7 +211,6 @@ struct SessionMenuPreviewView: View {
         }
     }
 
-    @ViewBuilder
     private func placeholder(_ text: String) -> some View {
         Text(text)
             .font(.caption)
@@ -227,7 +225,9 @@ enum SessionMenuPreviewLoader {
     private static let previewMaxChars = 240
 
     private struct PreviewTimeoutError: LocalizedError {
-        var errorDescription: String? { "preview timeout" }
+        var errorDescription: String? {
+            "preview timeout"
+        }
     }
 
     static func prewarm(sessionKeys: [String], maxItems: Int) async {