Keep Wi-Fi visible when hiding other menu bar icons

Hiding pushed Wi-Fi off along with the third-party app icons. Tune the
spacer boundary to sit just left of Wi-Fi so apps disappear while the
Apple Wi-Fi, Spotlight, Clock, Battery and Control Center icons remain.

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4.1-flash

Sources/SimpleTopBar/MenuBarItems.swift

@@ -167,10 +167,13 @@ final class MenuBarHider: ObservableObject {
         guard spacer == nil else { return }
         let name = "SimpleTopBarHider"
         let key = "NSStatusItem Preferred Position \(name)"
-        // Seed just left of the hamburger so growing the spacer pushes the
-        // third-party icons on its left off-screen while ours stays put.
-        if UserDefaults.standard.object(forKey: key) == nil {
-            UserDefaults.standard.set(150.0, forKey: key)
+        // The boundary between "hidden" and "kept" falls just left of Wi-Fi at
+        // ~250, so the other apps hide while Apple's Wi-Fi/Clock/Battery/Control
+        // Center/Spotlight stay visible. `debug.spacerPos` overrides the seed.
+        if let override = UserDefaults.standard.object(forKey: "debug.spacerPos") as? Double {
+            UserDefaults.standard.set(override, forKey: key)
+        } else if UserDefaults.standard.object(forKey: key) == nil {
+            UserDefaults.standard.set(250.0, forKey: key)
         }
         let item = NSStatusBar.system.statusItem(withLength: 0)
         item.autosaveName = name