refactor: Use graphql schema directly with graphql-tools library

packages/backend/src/graphql/mutation-resolvers.ts

@@ -0,0 +1,33 @@
+import createConnection from './mutations/create-connection';
+import createAuthData from './mutations/create-auth-data';
+import updateConnection from './mutations/update-connection';
+import resetConnection from './mutations/reset-connection';
+import verifyConnection from './mutations/verify-connection';
+import deleteConnection from './mutations/delete-connection';
+import createFlow from './mutations/create-flow';
+import updateFlow from './mutations/update-flow';
+import executeFlow from './mutations/execute-flow';
+import deleteFlow from './mutations/delete-flow';
+import createStep from './mutations/create-step';
+import updateStep from './mutations/update-step';
+import deleteStep from './mutations/delete-step';
+import login from './mutations/login';
+
+const mutationResolvers = {
+  createConnection,
+  createAuthData,
+  updateConnection,
+  resetConnection,
+  verifyConnection,
+  deleteConnection,
+  createFlow,
+  updateFlow,
+  executeFlow,
+  deleteFlow,
+  createStep,
+  updateStep,
+  deleteStep,
+  login,
+};
+
+export default mutationResolvers;