feat: Initial view controller dependency and snapshot tests.

Sources/ViewController/ViewController.swift

@@ -0,0 +1,31 @@
+import Dependencies
+import DependenciesMacros
+import Elementary
+import SharedModels
+
+public extension DependencyValues {
+  var viewController: ViewController {
+    get { self[ViewController.self] }
+    set { self[ViewController.self] = newValue }
+  }
+}
+
+@DependencyClient
+public struct ViewController: Sendable {
+  public typealias AuthenticateHandler = @Sendable (User) -> Void
+
+  public var view: @Sendable (ViewRoute, Bool, @escaping AuthenticateHandler) async throws -> (any HTML)?
+
+  @Sendable
+  public func view(
+    for route: ViewRoute,
+    isHtmxRequest: Bool,
+    authenticate: @escaping AuthenticateHandler
+  ) async throws -> (any HTML)? {
+    try await view(route, isHtmxRequest, authenticate)
+  }
+}
+
+extension ViewController: TestDependencyKey {
+  public static let testValue: ViewController = Self()
+}