Make the menu bar icon visible on a full menu bar

New status items land leftmost, which on a notched Mac lands under the
notch and is invisible, so the app appeared broken. Replace MenuBarExtra
with a managed status item that carries an autosave name and a persisted
preferred position, and add a diagnostic dump to verify placement.

💘 Generated with Crush

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

Sources/SimpleTopBar/MenuBarItems.swift

@@ -57,13 +57,13 @@ final class MenuBarItemManager: ObservableObject {
         items = Self.enumerate()
     }
 
-    nonisolated static func enumerate() -> [MenuBarItem] {
+    nonisolated static func enumerate(includeOwn: Bool = false) -> [MenuBarItem] {
         let ownPID = ProcessInfo.processInfo.processIdentifier
         var found: [MenuBarItem] = []
 
         for app in NSWorkspace.shared.runningApplications {
             let pid = app.processIdentifier
-            if pid == ownPID { continue }
+            if !includeOwn && pid == ownPID { continue }
             let axApp = AXUIElementCreateApplication(pid)
             guard let bar = extrasMenuBar(of: axApp),
                   let children = children(of: bar) else { continue }
@@ -126,6 +126,16 @@ final class MenuBarItemManager: ObservableObject {
               !string.isEmpty else { return nil }
         return string
     }
+
+    nonisolated static func pointAttribute(_ element: AXUIElement, _ attribute: String) -> CGPoint? {
+        var value: CFTypeRef?
+        guard AXUIElementCopyAttributeValue(element, attribute as CFString, &value) == .success,
+              let value,
+              CFGetTypeID(value) == AXValueGetTypeID() else { return nil }
+        var point = CGPoint.zero
+        guard AXValueGetValue(value as! AXValue, .cgPoint, &point) else { return nil }
+        return point
+    }
 }
 
 /// Best-effort menu bar item hiding. A zero-width spacer status item is created