test: verify timestamps precede persistence events

[elpete]

Summary

• capture automatic timestamps from the quickPreInsert lifecycle payload
• capture the refreshed modified timestamp from quickPreUpdate
• prove insert timestamps exist before persistence and update timestamps advance before persistence

Verification

• box testbox run runner=http://127.0.0.1:60442/tests/runner.cfm bundles=tests.specs.integration.BaseEntity.AutomaticTimestampsSpec (10 passed)
• box run-script format:check
• git diff --check