fix: bypass gulp for test scripts to fix Node 22 ESM compatibility

gulp-cli uses require() to load gulpfile.js which has an ESM top-level
await (config/index.js), causing ERR_REQUIRE_ASYNC_MODULE on Node 22+.

- Replace gulp test/testWatch/testCoverage with direct jest calls
- Add scripts/jest.globalSetup.js to drop test DB before suite runs
  (replaces the gulp dropDB task)
- Enable globalSetup in jest.config.js

Author: PierreBrisorgueil

jest.config.js

@@ -52,7 +52,7 @@ export default {
   // forceCoverageMatch: [],
 
   // A path to a module which exports an async function that is triggered once before all test suites
-  // globalSetup: null,
+  globalSetup: './scripts/jest.globalSetup.js',
 
   // A path to a module which exports an async function that is triggered once after all test suites
   // globalTeardown: null,

package.json

@@ -26,10 +26,10 @@
     "start": "node server.js",
     "debug": "nodemon --inspect server.js",
     "prod": "cross-env NODE_ENV=production node start server.js --name=node",
-    "test": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules gulp test",
-    "test:watch": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules  gulp testWatch",
-    "test:coverage": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules gulp testCoverage",
-    "test:coveralls": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules gulp testCoverage && cat ./coverage/lcov.info | coveralls",
+    "test": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules jest",
+    "test:watch": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules jest --watch",
+    "test:coverage": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules jest --coverage",
+    "test:coveralls": "cross-env NODE_ENV=test NODE_OPTIONS=--experimental-vm-modules jest --coverage && cat ./coverage/lcov.info | coveralls",
     "lint": "./node_modules/.bin/eslint ./modules ./lib ./config ./scripts",
     "seed:dev": "cross-env NODE_ENV=development gulp seed",
     "seed:prod": "cross-env NODE_ENV=production gulp seed",

scripts/jest.globalSetup.js

@@ -0,0 +1,12 @@
+/**
+ * Jest global setup - drops the test database before the test suite runs.
+ * Replaces the gulp dropDB task that previously ran before jest.
+ */
+import mongoose from 'mongoose';
+
+export default async () => {
+  const config = (await import('../config/index.js')).default;
+  await mongoose.connect(config.db.uri, config.db.options);
+  await mongoose.connection.dropDatabase();
+  await mongoose.disconnect();
+};