feat: Adds vault client

Sources/ConfigurationClient/File.swift

@@ -1,3 +1,4 @@
+import FileClient
 import Foundation
 
 /// Represents a file location and type on disk for a configuration file.
@@ -49,11 +50,3 @@ public enum File: Equatable, Sendable {
     return .toml(fileUrl)
   }
 }
-
-@_spi(Internal)
-public extension URL {
-
-  var cleanFilePath: String {
-    absoluteString.replacing("file://", with: "")
-  }
-}