✨ feat: add new route to get client callback

This new route serves to find the client callback after successfully logging in from the provider page. This is done so that the callback becomes more flexible and can be changed at any time.

src/modules/auth/services/http/getCallbackProviderUrl.service.ts

@@ -0,0 +1,14 @@
+import { getOauthProviders } from "../../../../config/oauthProvider";
+import { AppError } from "../../../../helpers/error/instances/app";
+
+export const getCallbackProviderUrlService = async (providerName: string) => {
+  const callbackUrl = getOauthProviders().find(
+    (provider) => provider.name === providerName
+  )?.client_callback;
+
+  if (!callbackUrl) {
+    throw new AppError(404, "The specified provider does not exist.");
+  }
+
+  return callbackUrl;
+};