chore: update test scripts in package.json to streamline testing process

Author: wiktoriavh

package.json

@@ -7,7 +7,6 @@
     "build:ci": "npm run build:ts && npm run build:copy",
     "build:dev": "pnpm run build:ts && pnpm run build:copy",
     "build:ts": "tsup",
-    "build:test": "tsup --entry 'src/**/*.ts' --entry 'test/**/*.ts'",
     "build:copy": "node scripts/copy-assets.js",
     "start": "node dist/index.js",
     "dev": "tsx watch src/index.ts",
@@ -23,8 +22,7 @@
     "check:fix": "biome check --write .",
     "typecheck": "tsc --noEmit",
     "test": "pnpm run build:dev && node --test dist/**/*.test.js",
-    "test:ci": "node --test $(find dist -name '*.test.js')",
-    "test:build": "npm run build:test && npm run test:ci",
+    "test:ci": "NODE_ENV=test node --test dist/**/*.test.js",
     "prepare": "husky",
     "pre-commit": "lint-staged",
     "sync-guides": "tsx scripts/sync-guides.js",