Integrate Oudelaa backend features, security, tests, and deployment updates

jest.config.js

@@ -2,10 +2,26 @@ module.exports = {
   moduleFileExtensions: ['js', 'json', 'ts'],
   rootDir: '.',
   testEnvironment: 'node',
+  setupFiles: ['<rootDir>/test/setup-env.ts'],
   testRegex: '.*\\.spec\\.ts$',
   transform: {
     '^.+\\.(t|j)s$': 'ts-jest',
   },
   collectCoverageFrom: ['src/**/*.(t|j)s'],
   coverageDirectory: './coverage',
+  coverageReporters: ['text', 'json-summary', 'lcov'],
+  coverageThreshold: {
+    global: {
+      statements: 90,
+      lines: 90,
+      functions: 90,
+      branches: 40,
+    },
+    './src/**/*.service.ts': {
+      statements: 50,
+      lines: 50,
+      functions: 50,
+      branches: 30,
+    },
+  },
 };