Register chat_backend for django deploy (chat_backend#6 Part B).

Add app_catalog entry, host_apps on adama/roslin/ai-server-4080 (prod
:8003), and document ports/NPM/Postgres/Ollama for active/active.

Co-authored-by: Cursor <cursoragent@cursor.com>

inventory/host_vars/adama.yml

@@ -14,3 +14,5 @@ host_apps:
   # optional: - { name: scha, env: beta, port: 8012 }
   - { name: chat_web_app, env: prod, port: 8082 }
   # optional: - { name: chat_web_app, env: beta, port: 8083 }
+  - { name: chat_backend, env: prod, port: 8003 }
+  # optional: - { name: chat_backend, env: beta, port: 8013 }

inventory/host_vars/ai-server-4080.yml

@@ -26,4 +26,6 @@ host_apps:
   - { name: dta_service, env: beta, port: 8011 }
   - { name: scha, env: prod, port: 8002 }
   - { name: chat_web_app, env: prod, port: 8082 }
-  # optional: - { name: chat_web_app, env: beta, port: 8083 }
+  # optional: - { name: chat_web_app, env: beta, port: 8083 }
+  - { name: chat_backend, env: prod, port: 8003 }
+  # optional: - { name: chat_backend, env: beta, port: 8013 }

inventory/host_vars/roslin.yml

@@ -11,3 +11,5 @@ host_apps:
   # optional: - { name: scha, env: beta, port: 8012 }
   - { name: chat_web_app, env: prod, port: 8082 }
   # optional: - { name: chat_web_app, env: beta, port: 8083 }
+  - { name: chat_backend, env: prod, port: 8003 }
+  # optional: - { name: chat_backend, env: beta, port: 8013 }