Complete ops-hub Inter-Hub bootstrap and close bootstrap workplans.

Extract bootstrap logic into src/ops_hub/bootstrap.py with dry-run support,
public hub discovery, and unit tests. Update the gate probe to accept public
hub listing (200 or 401), document dev commands and architecture, and archive
finished OPS-WP-0001 and OPS-WP-0002 workplans.

.claude/rules/repo-boundary.md

@@ -2,7 +2,10 @@
 
 This repo owns **ops-hub** only. It does not own:
 
-<!-- TODO: List what belongs in adjacent repos, e.g.:
-- SSH key management → railiance-infra/
-- State hub code     → state-hub/
--->
+- Generic Inter-Hub framework, API substrate, auth → `inter-hub/`
+- State Hub workstream/task/decision implementation → `state-hub/`
+- SSH CA, credential routing catalog, bootstrap SSH envelope → `ops-warden/`
+- OpenBao mounts, platform secret paths, ESO → `railiance-platform/`
+- Cluster desired state, host principals, force-command wrappers → `railiance-infra/`
+- HelixForge architecture handoff canon → `helix-forge/` (linked, not duplicated)
+- Identity/OIDC/MFA → `key-cape/` / Keycloak