Introduce a commercial license option alongside AGPL-3.0-only, require a
CLA for contributors, and document the terms in COMMERCIAL.md and
NOTICE. Add a script to stamp SPDX headers on Go files and apply it
across the tree.
Implement the ux-first-run change: a state-derived setup checklist on
/operator/setup with a landing region that recedes once required steps
are done, and empty states that distinguish blocked from empty across
operator and member surfaces. Also add production deployment and
environment reference docs, plus a config-key completeness test.
cgalo5758