docs: update docs and AGENTS.md with chat tool loop fix patterns

docs/architecture.md

@@ -1,3 +1,9 @@
+---
+title: architecture
+type: note
+permalink: voyage/docs/architecture
+---
+
 # Voyage Architecture
 
 > **Status**: Stub — to be expanded as architecture evolves.
@@ -38,4 +44,4 @@ Session-based via `django-allauth`. CSRF tokens from `/auth/csrf/`, passed as `X
 - [ ] Data flow diagrams
 - [ ] Database schema overview
 - [ ] Deployment architecture
-- [ ] MCP endpoint architecture
+- [ ] MCP endpoint architecture