Adds the checks.sql smoke step, the verified CLI result for generated seed content and the created_at/updated_at note for the API.
Refs #2
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Includes the checked CLI assumptions (sql_paths, begin/commit) and implementation notes in the spec.
Refs #2
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>