Add responsibility map; link from ADR-0010

Create docs/responsibility-map.md: the single home for NetKingdom's
orchestration relationships, kept out of the orchestrated repos' intents
per ADR-0010. Records the classification criterion, the current
minimal-foundation scope, and per orchestrated repo (railiance-infra,
railiance-cluster, railiance-platform, key-cape, flex-auth) the resources
held, what the repo owns (execution), and what NetKingdom orchestrates
(meta). Lists dependencies and out-of-scope repos so the scoping decision
is explicit and revisitable.

Update ADR-0010 to point at the now-created map.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/adr/ADR-0010-orchestration-vs-dependency-self-coherent-intent.md

@@ -76,9 +76,8 @@ boundaries between repos are refined over time.
   references (to NetKingdom or sister projects) where present.
 - The orchestration/dependency relationship and the per-repo
   **responsibility map** live in net-kingdom, not in the downstream repos.
-- A responsibility-map artifact in net-kingdom should enumerate, per
-  orchestrated repo, which resources NetKingdom manages. (Future work; not
-  created by this ADR.)
+- A responsibility-map artifact in net-kingdom enumerates, per orchestrated
+  repo, which resources NetKingdom manages: `docs/responsibility-map.md`.
 - ADR-0007's meta-orchestration layer is unchanged; this ADR clarifies
   *what* NetKingdom orchestrates versus merely uses.