feat: add authenticated durable native Hope chat

Sources/Networking/TokenClient.swift

@@ -4,6 +4,11 @@ struct TokenResponse: Decodable, Equatable {
     let token: String
     let room: String
     let user: User
+    let conversationID: String?
+    enum CodingKeys: String, CodingKey {
+        case token, room, user
+        case conversationID = "conversation_id"
+    }
 
     struct User: Decodable, Equatable {
         let id: String
@@ -44,6 +49,7 @@ final class TokenClient {
     private let session: URLSession
     var onUnauthorized: (() async -> Void)?
     let bearerToken: String
+    var conversationID: String?
 
     init(config: ServerConfig, bearerToken: String = "", session: URLSession? = nil) {
         self.config = config
@@ -63,6 +69,10 @@ final class TokenClient {
         guard !bearerToken.isEmpty else { throw AuthError.status(401) }
         var request = URLRequest(url: config.baseURL.appendingPathComponent("token"))
         request.httpMethod = "POST"
+        if let conversationID {
+            request.httpBody = try JSONSerialization.data(withJSONObject: ["conversation_id": conversationID])
+            request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        }
         request.setValue("Bearer \(bearerToken)", forHTTPHeaderField: "Authorization")
         request.timeoutInterval = 10
         let (data, response) = try await session.data(for: request)