Adds email-defaults.changelog.sql (non-default neutral brand, only when no brand
exists; tested through real Liquibase), help for the app and every table, a
Setup card on the home, guardrail tests and docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
email_template.ownerQbit was stored but never read. Messages sent from a
template now name its owner qbit as senderQbit unless the request names one,
the built-in secure-message template sets it, and the field is read-only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>