Fix URL.temporaryDir and homeDirectory for Windows compatibility

- Change from URL(string:) to URL(fileURLWithPath:) for file system paths
- URL(string:) fails on Windows paths with backslashes and drive letters (C:\)
- URL(fileURLWithPath:) properly handles platform-specific file paths

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: leogdion

Sources/BushelFoundationWax/Fake/URL.swift

@@ -32,8 +32,6 @@ public import Foundation
 extension URL {
   // swiftlint:disable:next force_unwrapping
   public static let bushelWebSite = URL(string: "https://getbushel.app")!
-  // swiftlint:disable:next force_unwrapping
-  public static let homeDirectory = URL(string: NSHomeDirectory())!
-  // swiftlint:disable:next force_unwrapping
-  public static let temporaryDir = URL(string: NSTemporaryDirectory())!
+  public static let homeDirectory = URL(fileURLWithPath: NSHomeDirectory())
+  public static let temporaryDir = URL(fileURLWithPath: NSTemporaryDirectory())
 }