style(lint): fix swiftlint warnings

Sources/AXorcist/Core/AppLocator.swift

@@ -25,10 +25,8 @@ public enum AppLocator {
             $0.activationPolicy == .regular && !$0.isHidden && $0.bundleIdentifier != nil
         }
 
-        for app in visibleApps {
-            if Self.point(mouseLocation, isInsideWindowOf: app) {
-                return app
-            }
+        for app in visibleApps where Self.point(mouseLocation, isInsideWindowOf: app) {
+            return app
         }
 
         // Fallback.

Tests/AXorcistTests/InputDriverTests.swift

@@ -13,7 +13,7 @@ struct InputDriverTests {
 
     @Test("cachedLocation populates cache when empty")
     func cachedLocationPopulatesCache() {
-        var cache: CGPoint? = nil
+        var cache: CGPoint?
         _ = InputDriver.cachedLocation(using: &cache)
         // If running in CI without UI, location may be nil; just assert cache mirrors result.
         #expect(cache == InputDriver.currentLocation())