[bconnell]

Problem

The lead statistics endpoint performed six separate count queries, allowing inconsistent results if commits occurred between them and adding unnecessary database work.

Changes

• Use one JPQL grouped database query with a typed LeadStatusCount result.
• Sum returned groups for total, and return zeros for absent statuses without loading lead entities.
• Preserve the HTTP response shape, status names, and existing behavior.
• Test grouped results, missing statuses, empty datasets, and single repository invocation across unit, H2 HTTP, and PostgreSQL HTTP coverage.
• Document query structure and evidence without claiming a measured speedup.

Verification

• Final head: 6384abe9d1eada1f4f0344358880eb851187dd4f.
• Final GitHub Actions CI run 39083417179: completed successfully.
• Maven clean verify: 41 application tests and 5 PostgreSQL Testcontainers integration tests. No failures, errors, or skips.
• Spring Boot packaging, PostgreSQL Compose health/readiness and cleanup all succeeded.
• No Flyway migrations, HTTP contract changes, or new dependencies.
• Change confined to the statistics repository/service, their regression tests, and documentation.

Limit

A reduction from six count statements to one is verified by implementation and tests. No workload benchmark or measured latency improvement is claimed.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-18T00:39:31.332742Z	6384abe	Draft marked ready

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