chore: monorepo setup (#7175)

packages/collection/jest.config.js

@@ -0,0 +1,11 @@
+/**
+ * @type {import('@jest/types').Config.InitialOptions}
+ */
+module.exports = {
+	testMatch: ['**/+(*.)+(spec|test).+(ts|js)?(x)'],
+	testEnvironment: 'node',
+	collectCoverage: true,
+	collectCoverageFrom: ['src/**/*.ts'],
+	coverageDirectory: 'coverage',
+	coverageReporters: ['text', 'lcov', 'clover'],
+};