Add base project

Implement auth method

ios/Pubky.swift

@@ -0,0 +1,16 @@
+import Foundation
+
+@objc(Pubky)
+class Pubky: NSObject {
+  @objc(auth:secretKey:withResolver:withRejecter:)
+  func auth(_ url: String, secretKey: String, resolve: @escaping RCTPromiseResolveBlock, reject: @escaping RCTPromiseRejectBlock) {
+      Task {
+          do {
+              let result = try await react_native_pubky.auth(url: url, secretKey: secretKey)
+              resolve(result)
+          } catch {
+              reject("auth Error", "Failed to auth", error)
+          }
+      }
+  }
+}