Record ADR conflicts and publish the estate arc42

T03 writes a rulings overlay and a readable conflict list. T04 starts
relevance: five superseded, five live conflicts, estate and activity-core
ADRs marked publish-after-prefix. The Coulomb estate map is now a
published architecture document.

docs/adr-review/SUMMARY.md

@@ -1,18 +1,20 @@
 # ADR review ledger summary
 
-Rows: 126
+Rows: 127
 
 ## Inventory dispositions
 
 - `excluded`: 2
 - `metadata-pending`: 105
-- `published`: 11
+- `published`: 12
 - `unsupported-format`: 8
 
 ## Proposed dispositions
 
-- `publish`: 9
-- `unreviewed`: 117
+- `conflict`: 5
+- `publish`: 27
+- `superseded`: 5
+- `unreviewed`: 90
 
 ## Front-matter `id` collisions
 
@@ -37,6 +39,14 @@ Rows: 126
 - `ADR-0010`: net-kingdom/docs/adr/ADR-0010-orchestration-vs-dependency-self-coherent-intent.md, the-custodian/canon/architecture/adr-010-hub-authority-and-local-cache-model.md
 - `ADR-0011`: net-kingdom/docs/adr/ADR-0011-iam-profile-ownership-and-version-governance.md, the-custodian/canon/architecture/adr-011-federated-namespaces-and-reconciliation-limits.md
 
+## Conflict rows
+
+- `coulomb-social/docs/adr/ADR-0002-space-content-forgejo-markdown.md` (kinds 2): Status is 'superseded in part' by ADR-0003/0004. Not a clean superseded or accepted. Who rules: coulomb-social.
+- `railiance-hosts/docs/adr/ADR-003-railiance-5repo-stack-architecture.md` (kinds 6): Accepted 5-repo stack ADR is byte-identical in railiance-hosts and railiance-infra. Two current copies of one decision. Who rules: those two repos, or railiance-master if the stack story moved.
+- `railiance-hosts/docs/adr/ADR-004-forgejo-in-cluster-actions-runner.md` (kinds 6): Accepted Forgejo runner ADR is byte-identical in railiance-hosts and railiance-infra. Who rules: those two repos.
+- `railiance-infra/docs/adr/ADR-003-railiance-5repo-stack-architecture.md` (kinds 6): Identical accepted copy of the hosts ADR-003. Do not publish both.
+- `railiance-infra/docs/adr/ADR-004-forgejo-in-cluster-actions-runner.md` (kinds 6): Identical accepted copy of the hosts ADR-004. Do not publish both.
+
 ## Missing files
 
 None.