feat: complete p0 hardening sprint

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "calendar-run-backend",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "private": true,
   "scripts": {
     "build": "tsc",
@@ -8,7 +8,7 @@
     "start": "node dist/index.js",
     "db:migrate": "ts-node src/migrate.ts",
     "seed": "ts-node src/seed.ts",
-    "test": "cross-env CALENDAR_RUN_MOCK_DB=1 tsx --test test/app.test.ts"
+    "test": "tsx --import ./test/setup.ts --test test/app.test.ts"
   },
   "dependencies": {
     "argon2": "^0.44.0",
@@ -31,7 +31,6 @@
     "@types/nodemailer": "^8.0.0",
     "@types/pg": "^8.11.10",
     "@types/supertest": "^6.0.2",
-    "cross-env": "^10.1.0",
     "supertest": "^7.0.0",
     "ts-node": "^10.9.2",
     "tsx": "^4.19.2",