chore: address follow-up review feedback from PRs 18, 20, and 21

[davebarnwell]

Summary

• address the outstanding Copilot review comment from PR docs: refresh README and contribution guide #21
• clarify that the Docker Compose services are exposed on host ports 3306 and 5432
• address the remaining SQLite test setup feedback from PR fix: isolate statement cache and fix SQLite inserts #20
• guard SQLite sequence resets so SQLite test runs do not fail before the first AUTOINCREMENT insert creates sqlite_sequence
• address the remaining release workflow feedback from PR ci: add CalVer release workflow #18
• run the release workflow on pushes to main instead of pull_request_target and verify existing tags against remote refs directly

Validation

• MODEL_ORM_TEST_DSN=sqlite::memory: vendor/bin/phpunit -c phpunit.xml.dist
• ruby -e 'require "yaml"; YAML.load_file(".github/workflows/release.yml"); puts "release.yml parses"'

Context

• PR docs: refresh README and contribution guide #21 review thread: docs: refresh README and contribution guide #21 (comment)
• PR fix: isolate statement cache and fix SQLite inserts #20 review thread: fix: isolate statement cache and fix SQLite inserts #20 (comment)
• PR fix: isolate statement cache and fix SQLite inserts #20 review thread: fix: isolate statement cache and fix SQLite inserts #20 (comment)
• PR ci: add CalVer release workflow #18 review thread: ci: add CalVer release workflow #18 (comment)
• PR ci: add CalVer release workflow #18 review thread: ci: add CalVer release workflow #18 (comment)

[Copilot]

Pull request overview

This is a documentation-only follow-up to PR #21, correcting the description of how Docker Compose exposes database ports. The original wording implied the ports were bound exclusively to 127.0.0.1, but the docker-compose.yml actually binds them to all interfaces, so the updated phrasing "host port 3306/5432" is more accurate.

Changes:

• Replaces 127.0.0.1:3306 and 127.0.0.1:5432 with "host port 3306" and "host port 5432" in the contributing guide to accurately reflect the Docker Compose port binding behavior.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.

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