rely on zod to remove os specific restraints

modules/expo-bluesky-oauth-client/ios/JWK.swift

@@ -1,58 +1,32 @@
 import ExpoModulesCore
 import JOSESwift
 
-struct JWK : Record {
-  @Field
-  var alg: String
-  @Field
-  var kty: String
-  @Field
-  var crv: String?
-  @Field
-  var x: String?
-  @Field
-  var y: String?
-  @Field
-  var e: String?
-  @Field
-  var n: String?
-  @Field
+struct JWK {
+  let kty: String
+  let use: String
+  let crv: String
+  let kid: String
+  let x: String
+  let y: String
   var d: String?
-  @Field
-  var use: String?
-  @Field
-  var kid: String?
+  let alg: String
   
-  func toField() -> Field<JWK> {
-    return Field(wrappedValue: self)
-  }
-  
-  func toPrivateSecKey() throws -> SecKey? {
-    let jsonData = try JSONSerialization.data(withJSONObject: self.toDictionary())
-    guard let jwk = try? JSONDecoder().decode(ECPrivateKey.self, from: jsonData),
-          let key = try? jwk.converted(to: SecKey.self)
-    else {
-      print("Error creating SecKey.")
-      return nil
-    }
-    return key
-  }
-  
-  func toPublicSecKey() throws -> SecKey? {
-    let jsonData = try JSONSerialization.data(withJSONObject: self.toDictionary())
-    guard let jwk = try? JSONDecoder().decode(ECPublicKey.self, from: jsonData),
-          let key = try? jwk.converted(to: SecKey.self)
-    else {
-      print("Error creating SecKey.")
-      return nil
-    }
-    return key
-  }
-}
+  func toJson() -> String {
+    var dict: [String: Any] = [
+      "kty": kty,
+      "use": use,
+      "crv": crv,
+      "kid": kid,
+      "x": x,
+      "y": y,
+      "alg": alg,
+    ]
 
-struct JWKPair : Record {
-  @Field
-  var privateKey: JWK
-  @Field
-  var publicKey: JWK
+    if let d = d {
+      dict["d"] = d
+    }
+
+    let jsonData = try! JSONSerialization.data(withJSONObject: dict, options: [])
+    return String(data: jsonData, encoding: .utf8)!
+  }
 }