The blueprint for the next §22 slice after M3-frontend (v0.35.0): make a
second project's corpus actually serve + render. Pins the three things that
land together — the default-project-id re-stamp (§22.13 step 1), the deferred
slug-keyed PK/UNIQUE rebuilds (migration 026 header, 12 tables), and
per-project RFC serving (path-scoped endpoints + per-project cache/bot/webhook
dispatch + scoped frontend calls + guard removal). Notes the Tier-1 registry
seed as the shared unblock for both this slice's and M3-frontend's deferred
e2e. Target v0.36.0 (possibly split B-1 read / B-2 write).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>