Merge branch 'stack/agent-profiles-7-docs' into stack/agent-profiles-8-authoring

# Conflicts:
#	docs/architecture.i18n.yaml

docs/architecture.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/architecture.md
-architecture.md: 81464d9c8800556565c84d33239882dc750180a8
-architecture.zh.md: c02bca4f12c3758723b0fc818c89080dccf435d9
+architecture.md: bc6fd03947aed5d8f8315c282366abf34f0d7e3b
+architecture.zh.md: 7342e6508194de191173ab8712f08f370fe6c55c