ios: quick question UI

ios/Packages/Sybil/Sources/Sybil/SybilAPIClient.swift

@@ -49,11 +49,16 @@ actor SybilAPIClient: SybilAPIClienting {
         return response.chats
     }
 
-    func createChat(title: String? = nil) async throws -> ChatSummary {
+    func createChat(
+        title: String? = nil,
+        provider: Provider? = nil,
+        model: String? = nil,
+        messages: [CompletionRequestMessage]? = nil
+    ) async throws -> ChatSummary {
         let response = try await request(
             "/v1/chats",
             method: "POST",
-            body: AnyEncodable(ChatCreateBody(title: title)),
+            body: AnyEncodable(ChatCreateBody(title: title, provider: provider, model: model, messages: messages)),
             responseType: ChatCreateResponse.self
         )
         return response.chat
@@ -617,6 +622,7 @@ actor SybilAPIClient: SybilAPIClienting {
 
 struct CompletionStreamRequest: Codable, Sendable {
     var chatId: String?
+    var persist: Bool? = nil
     var provider: Provider
     var model: String
     var messages: [CompletionRequestMessage]
@@ -624,6 +630,9 @@ struct CompletionStreamRequest: Codable, Sendable {
 
 private struct ChatCreateBody: Encodable {
     var title: String?
+    var provider: Provider?
+    var model: String?
+    var messages: [CompletionRequestMessage]?
 }
 
 private struct SearchCreateBody: Encodable {