nisse-core's history becomes the repo root; the spec moves to docs/ at
top level; nisse-dev and nisse-ops fold in as package directories, their
seed histories (pointer files only) discarded. Pointer READMEs and
CLAUDE.mds are rewritten for in-tree paths.
Rationale: for a solo operator the three-repo split tripled admin
surface (tokens, CI, webhooks, permissions, backups) and imposed a
version-pinning contract on nisse-core, while the repo boundary was
never a trust boundary — the VM is. The spec's Part H is updated in the
next commit to record the decision.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>