Add enterprise appliance experience Phase 1 foundation

tests/deployment/README.md

@@ -0,0 +1,18 @@
+# Deployment Validation
+
+Run from the repository root on a safe validation host.
+
+```bash
+bash -n install.sh autoinstall/firstboot-setup.sh autoinstall/build-iso.sh \
+  autoinstall/build-iso-workstation.sh autoinstall/build-iso-starter.sh
+ansible-playbook --syntax-check ansible/starter.yml
+ansible-playbook --syntax-check ansible/entry.yml
+ansible-playbook --syntax-check ansible/pro.yml
+ansible-playbook --syntax-check ansible/max.yml
+python3 -m py_compile ansible/roles/cezen-backend/files/main.py \
+  ansible/roles/cezen-backend/files/cezen_license.py autoinstall/websetup/server.py
+```
+
+Syntax checks do not prove installation. Phase 1 additionally requires clean-install, interruption,
+reboot/resume, restricted-network, migration, backup/restore and source-to-artifact evidence on one
+representative Workstation and one representative Server.