fix(openbao): use production mode instead of dev mode

- Add explicit command: server -config=/openbao/config/config.hcl
- Remove OPENBAO_DEV_ROOT_TOKEN_ID (not needed in production)
- Fixes 'address already in use' error caused by dev mode conflict

The base OpenBao image defaults to 'server -dev' which conflicts with
our production config.hcl. This change forces production mode.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.openbao.yml

@@ -22,10 +22,10 @@ services:
   openbao:
     image: git.mosaicstack.dev/mosaic/stack-openbao:${IMAGE_TAG:-dev}
     container_name: mosaic-openbao
+    command: server -config=/openbao/config/config.hcl
     env_file: .env
     environment:
       OPENBAO_ADDR: http://0.0.0.0:8200
-      OPENBAO_DEV_ROOT_TOKEN_ID: ${OPENBAO_DEV_ROOT_TOKEN_ID:-root}
     ports:
       - "127.0.0.1:${OPENBAO_PORT:-8200}:8200" # Localhost only for security
     volumes: