test: optimize healthchecks and force image rebuild

[gustavosbarreto]

• Optimize Postgres healthcheck: 115s → 30s max wait time
• Optimize MongoDB healthcheck interval: 30s → 5s
• Add pull_policy: build to force image rebuild with current migrations
• Add restart: on-failure:3 for automatic recovery from transient failures
• Fix cleanup: move compose.Down() to defer to ensure container cleanup on test failure

[github-actions]

Claude finished @gustavosbarreto's task in 3m 24s —— View job

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Code Review Complete

Reviewed 4 files across code quality, security, testing, language patterns, and architecture — no issues found. The code looks good as-is.

The changes are well-structured:

• Healthcheck tuning (mongo/postgres) correctly reduces wait times with appropriate retry/interval/timeout values
• pull_policy: build ensures fresh image builds with current migrations (valid in Compose Spec; version: "3.7" is ignored by modern docker compose v2)
• restart: on-failure:3 provides sensible resilience for transient startup failures without undermining test integrity (healthchecks still gate readiness)
• defer compose.Down() is the correct Go idiom — guarantees cleanup on test failure/panic, and cleanup ordering with t.Cleanup for agents is safe

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