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- docker-compose.test.yml: full stack test profile with seed + playwright - scripts/seed/init.sql: test data (admin, members, batches, distributions) - scripts/seed/seed.sh: backend readiness validation script - e2e/system-test.spec.ts: full user journey against real/mock stack - package.json: test:e2e, test:system, test:all scripts - scripts/README.md: system test documentation and usage instructions