Merge branch 'code-differently:main' into lesson_26

Author: Cogbonnia

.gitignore

@@ -147,4 +147,6 @@ dist
 *.pyd
 __pycache__/
 venv/
-pip-log.txt
+pip-log.txt
+.vercel
+.env*.local

lesson_27/api/jest.config.js

@@ -0,0 +1,11 @@
+/** @type {import('ts-jest').JestConfigWithTsJest} **/
+export default {
+  testEnvironment: 'node',
+  transform: {
+    '^.+.tsx?$': ['ts-jest', {useESM: true}],
+  },
+  moduleNameMapper: {
+    '^(\\.\\.?\\/.+)\\.js$': '$1',
+  },
+  extensionsToTreatAsEsm: ['.ts'],
+};