chore: refacto NestJS in modules (#308)

* chore: wip refacto in modules

* fix: rollback port

* fix: jwt guard in wrong folder

* chore: rename folder exception-filter in filters

* fix: tests are running

* fix: excessive stack depth comparing types

* fix: auth issue

* chore: move createUser in UserService

* fix: test

* fix: guards

* fix: jwt guard don't handle falsy user

server/jest.config.ts

@@ -0,0 +1,18 @@
+module.exports = {
+  clearMocks: true,
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  setupFilesAfterEnv: ['<rootDir>/src/prisma-mock/jest-prisma-singleton.ts'],
+
+  moduleFileExtensions: ['js', 'json', 'ts'],
+  moduleNameMapper: {
+    '^src/(.*)': '<rootDir>/src/$1',
+  },
+  rootDir: './',
+  testRegex: '.*\\.spec\\.ts$',
+  transform: {
+    '^.+\\.(t|j)s$': 'ts-jest',
+  },
+  collectCoverageFrom: ['**/*.(t|j)s'],
+  coverageDirectory: '../coverage',
+};