chore: simplify backend verification

package.json

@@ -9,7 +9,6 @@
     "node": "22.x"
   },
   "scripts": {
-    "runtime:check": "node scripts/verify-node-version.mjs",
     "build": "prisma generate && nest build",
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
     "start": "nest start",
@@ -19,7 +18,6 @@
     "lint": "npm run lint:check",
     "lint:check": "eslint \"{src,apps,libs,test}/**/*.ts\" --max-warnings=0",
     "lint:fix": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
-    "hygiene:check": "node scripts/repository-hygiene-check.mjs",
     "typecheck:app": "tsc --project tsconfig.typecheck.app.json",
     "typecheck:test": "tsc --project tsconfig.typecheck.test.json",
     "test": "jest",
@@ -27,7 +25,8 @@
     "test:cov": "jest --coverage",
     "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
     "test:e2e": "DATABASE_URL=file:/tmp/wealth-ledger-e2e.db prisma migrate deploy && NODE_ENV=development NODE_OPTIONS=--experimental-vm-modules jest --config ./test/jest-e2e.json",
-    "verify": "npm run runtime:check && npm run hygiene:check && npm run lint && npm run typecheck:app && npm run typecheck:test && npm test -- --runInBand && npm run build"
+    "test:openapi-contract": "NODE_OPTIONS=--experimental-vm-modules jest --config ./test/jest-e2e.json --runInBand openapi-contract.e2e-spec.ts",
+    "verify": "npm run lint && npm run typecheck:app && npm run typecheck:test && npm test -- --runInBand && npm run build"
   },
   "dependencies": {
     "@grpc/grpc-js": "^1.14.4",