feat: wip casl policies (#334)

* feat: wip casl policies

* feat: add ability guard on pipeline resolvers

* fix: test

server/src/database/client-mock/jest-prisma-singleton.ts

@@ -0,0 +1,15 @@
+import { PrismaClient } from '@prisma/client';
+import { mockDeep, mockReset, DeepMockProxy } from 'jest-mock-extended';
+
+import prisma from './client';
+
+jest.mock('./client', () => ({
+  __esModule: true,
+  default: mockDeep<PrismaClient>(),
+}));
+
+beforeEach(() => {
+  mockReset(prismaMock);
+});
+
+export const prismaMock = prisma as unknown as DeepMockProxy<PrismaClient>;