feat: Begin using Tagged types

Sources/FileClient/Interface.swift

@@ -4,6 +4,7 @@ import Foundation
 import Vapor
 
 extension DependencyValues {
+  /// Dependency used for file operations.
   public var fileClient: FileClient {
     get { self[FileClient.self] }
     set { self[FileClient.self] = newValue }
@@ -14,9 +15,27 @@ extension DependencyValues {
 public struct FileClient: Sendable {
   public typealias OnCompleteHandler = @Sendable () async throws -> Void
 
-  public var writeFile: @Sendable (String, String) async throws -> Void
-  public var removeFile: @Sendable (String) async throws -> Void
-  public var streamFile: @Sendable (String, @escaping OnCompleteHandler) async throws -> Response
+  /// Write contents to a file.
+  ///
+  /// > Warning: This will overwrite a file if it exists.
+  public var writeFile: @Sendable (_ contents: String, _ path: String) async throws -> Void
+  /// Remove a file.
+  public var removeFile: @Sendable (_ path: String) async throws -> Void
+  /// Stream a file.
+  public var streamFile:
+    @Sendable (_ path: String, @escaping OnCompleteHandler) async throws -> Response
+
+  /// Stream a file at the given path.
+  ///
+  /// - Paramters:
+  ///   - path: The path to the file to stream.
+  ///   - onComplete: Completion handler to run when done streaming the file.
+  public func streamFile(
+    at path: String,
+    onComplete: @escaping OnCompleteHandler = {}
+  ) async throws -> Response {
+    try await streamFile(path, onComplete)
+  }
 }
 
 extension FileClient: TestDependencyKey {