Hygiene release.
Changes
- README: switch git@github.com clone URL to https for npm-install ergonomics.
- Restore content-guard pre-push hook.
History rewrite
History was rewritten between v0.2.0 and v0.2.1 to remove `docs/superpowers/` plans + specs that referenced lab IPs, and the `.claude/` memory handoff that landed in v0.2.0. Anyone who cloned earlier should reset against the new history (force pull or re-clone).
Phase B context
Same Phase B transforms surface as v0.2.0 (six MCP transforms: MISP event pivot + iocs, TheHive case pivot + observables, Cortex analyze, ATT&CK technique pivot). See v0.2.0 release notes for the full feature list.