Deliver ADR cleanup packets and publish first-wave arc42 stubs

Packets go to seven owning repos by inbox and checklist. Railiance,
NetKingdom, and State Hub now have published architecture stubs.

source-inventory.config.json

@@ -59,7 +59,7 @@
     "net-kingdom": {
       "branch": "main",
       "remote": "https://forgejo.coulomb.social/coulomb/net-kingdom.git",
-      "selectors": ["canon/standards/**", "docs/adr/*.md"]
+      "selectors": ["canon/standards/**", "docs/adr/*.md", "docs/architecture/*.md"]
     },
     "policy-nexus": {
       "local": true,
@@ -78,7 +78,7 @@
     "railiance-master": {
       "branch": "main",
       "remote": "https://forgejo.coulomb.social/coulomb/railiance-master.git",
-      "selectors": ["docs/adr/*.md"]
+      "selectors": ["docs/adr/*.md", "docs/architecture/*.md"]
     },
     "railiance-platform": {
       "branch": "main",
@@ -95,6 +95,11 @@
       "remote": "https://forgejo.coulomb.social/coulomb/rein-aharness.git",
       "selectors": ["docs/adr/*.md"]
     },
+    "state-hub": {
+      "branch": "main",
+      "remote": "https://forgejo.coulomb.social/coulomb/state-hub.git",
+      "selectors": ["docs/architecture/*.md"]
+    },
     "target-revenue": {
       "branch": "main",
       "remote": "https://forgejo.coulomb.social/coulomb/target-revenue.git",