Normalize repo metadata and sync docs

.claude/rules/repo-boundary.md

@@ -1,8 +1,12 @@
 ## Repo boundary
 
 This repo owns **adaptive-pricing** only. It does not own:
-
-<!-- TODO: List what belongs in adjacent repos, e.g.:
-- SSH key management → railiance-infra/
-- State hub code     → state-hub/
--->
+- State Hub server code, DB schema, or consistency tooling → `~/state-hub`
+- SSH certificates, login flows, or secret vending → `ops-warden`,
+  `ops-bridge`, OpenBao, Keycloak, and related custody systems
+- Bubble.io, Stripe, or OpenRouter product runtimes themselves; this repo only
+  models or imports their pricing-relevant data
+- Generic whynot-design source assets; this repo only vendors the UI artifacts
+  needed by `projects/coulomb-pricing/ui/`
+- Unrelated Coulomb or marketplace application code outside
+  `projects/coulomb-pricing/`