feat: add notification microservices and transactional outbox

jest.config.js

@@ -7,6 +7,11 @@ module.exports = {
   transform: {
     '^.+\\.(t|j)s$': 'ts-jest',
   },
+  moduleNameMapper: {
+    '^@app/contracts$': '<rootDir>/libs/contracts/src',
+    '^@app/events$': '<rootDir>/libs/events/src',
+    '^@app/common$': '<rootDir>/libs/common/src',
+  },
   collectCoverageFrom: ['src/**/*.(t|j)s'],
   coverageDirectory: './coverage',
   coverageReporters: ['text', 'json-summary', 'lcov'],