Add docker admin bootstrap for clean release

.env.enterprise-clean.example

@@ -1,7 +1,7 @@
 # Offline / air-gapped compose profile for enterprise clean release.
 
-BACKEND_IMAGE=ss-tools-backend:v1.0.0-rc2
-FRONTEND_IMAGE=ss-tools-frontend:v1.0.0-rc2
+BACKEND_IMAGE=ss-tools-backend:v1.0.0-rc2-docker
+FRONTEND_IMAGE=ss-tools-frontend:v1.0.0-rc2-docker
 POSTGRES_IMAGE=postgres:16-alpine
 
 POSTGRES_DB=ss_tools
@@ -17,5 +17,11 @@ TASK_LOG_LEVEL=INFO
 
 STORAGE_ROOT=./storage
 
+# Initial admin bootstrap. Set to true only for the first startup in a new environment.
+INITIAL_ADMIN_CREATE=false
+INITIAL_ADMIN_USERNAME=admin
+INITIAL_ADMIN_PASSWORD=change-me
+INITIAL_ADMIN_EMAIL=
+
 OPENAI_API_KEY=
 ANTHROPIC_API_KEY=