fix: run action-only commands without presenting launcher

Tests/ConjureKitTests/SystemThemeTests.swift

@@ -59,6 +59,51 @@ func themeToggleDismissesOnlyOnSuccessAndPreventsOverlappingRequests(_ succeeds:
     }
 }
 
+@MainActor private final class ThemeWindowEvents {
+    var becameKey = false
+}
+
+@Test(.serialized, arguments: [true, false], [true, false]) @MainActor
+func actionActivationPreservesWindowVisibilityAndSearch(_ directPresentation: Bool, _ initiallyVisible: Bool) async throws {
+    _ = NSApplication.shared
+    let suite = "ConjureBackgroundTheme.\(UUID().uuidString)"
+    let defaults = UserDefaults(suiteName: suite)!
+    defer { defaults.removePersistentDomain(forName: suite) }
+    let history = LaunchHistory(defaults: defaults, now: { Date(timeIntervalSinceReferenceDate: 12_000) })
+    let theme = Application(command: .toggleTheme)
+    let competitor = Application(url: URL(fileURLWithPath: "/Applications/Zebra.app"), name: "Zebra")
+    let entries = [theme, competitor]
+    history.recordLaunch(of: competitor)
+    var pending: CheckedContinuation<Void, Never>?
+    let launcher = LauncherWindowController(history: history, defaults: defaults, toggleSystemTheme: {
+        await withCheckedContinuation { pending = $0 }
+    })
+    let window = try #require(launcher.window)
+    defer { window.orderOut(nil) }
+    if initiallyVisible { window.orderFront(nil) }
+    func descendants(_ view: NSView) -> [NSView] { [view] + view.subviews.flatMap(descendants) }
+    let content = try #require(window.contentView)
+    let search = try #require(descendants(content).compactMap { $0 as? NSSearchField }.first)
+    search.stringValue = "keep this search"
+    let events = ThemeWindowEvents()
+    let observer = NotificationCenter.default.addObserver(
+        forName: NSWindow.didBecomeKeyNotification, object: window, queue: .main
+    ) { _ in MainActor.assumeIsolated { events.becameKey = true } }
+    defer { NotificationCenter.default.removeObserver(observer) }
+    if directPresentation { launcher.present(command: .toggleTheme) }
+    else { launcher.toggle(command: .toggleTheme) }
+    #expect(window.isVisible == initiallyVisible)
+    try await waitForTheme("Background action started") { pending != nil }
+    #expect(window.isVisible == initiallyVisible)
+    #expect(search.stringValue == "keep this search")
+    #expect(history.suggestions(in: entries).first?.id == competitor.id)
+    pending?.resume()
+    try await waitForTheme("Background action completed") { history.suggestions(in: entries).first?.id == theme.id }
+    #expect(window.isVisible == initiallyVisible)
+    #expect(search.stringValue == "keep this search")
+    #expect(!events.becameKey)
+}
+
 @MainActor private func waitForTheme(_ state: Comment, _ condition: () -> Bool) async throws {
     // Scheduling deadline only; launch ranking uses the fixed clock above.
     for _ in 0..<1_000 {