feat: Add OpenAI API type configuration and update provider settings

webui/src/lib/api.ts

@@ -290,6 +290,7 @@ export async function updateProviderSettings(
   query.set("provider", update.provider);
   if (update.apiKey !== undefined) query.set("api_key", update.apiKey);
   if (update.apiBase !== undefined) query.set("api_base", update.apiBase);
+  if (update.apiType !== undefined) query.set("api_type", update.apiType);
   return request<SettingsPayload>(
     `${base}/api/settings/provider/update?${query}`,
     token,

webui/src/lib/types.ts

@@ -206,6 +206,7 @@ export interface SettingsPayload {
     api_key_hint?: string | null;
     api_base?: string | null;
     default_api_base?: string | null;
+    api_type?: "auto" | "chat_completions" | "responses";
   }>;
   web_search: {
     provider: string;
@@ -391,6 +392,7 @@ export interface ProviderSettingsUpdate {
   provider: string;
   apiKey?: string;
   apiBase?: string;
+  apiType?: "auto" | "chat_completions" | "responses";
 }
 
 export interface WebSearchSettingsUpdate {