Merge remote-tracking branch 'origin/master' into codex/ask-user-question

# Conflicts:
#	docs/module-graph.md

scripts/gen-doc-graphs.ts

@@ -158,6 +158,15 @@ const SERVICE_ROLES: ServiceRole[] = [
     consumers: ['tool-bash', 'hooks-claude', 'hooks-codex'],
     note: 'The model-facing bash tools and hook bridges consume this seam; sandboxed or remote executors can replace bash-local.',
   },
+  {
+    key: 'codeRuntime',
+    pkg: 'code-runtime',
+    title: 'Code-execution seam',
+    mode: 'seam',
+    implementations: [],
+    consumers: [],
+    note: 'Runs one model-written program against host-provided async bindings; backends differ by substrate and language (the Code Mode RFC specifies the worker-thread backend and the tool-registry consumer).',
+  },
   {
     key: 'fs',
     pkg: 'fs',