Add enterprise appliance experience Phase 1 foundation

tests/fixtures/README.md

@@ -0,0 +1,18 @@
+# Appliance Test Fixtures
+
+## Supported Baseline
+
+Capture the exact prior released revision, package/ISO checksum, Ubuntu version, product category,
+commercial tier, schema version and enabled components before migration testing. A moving `main`
+checkout is not a valid baseline.
+
+## Restore Fixture Requirements
+
+- Synthetic users, audit events, settings and operational state only.
+- No real credentials, signed licenses, customer documents or private logs.
+- Valid checksums and a documented schema/product version.
+- Representative Workstation and Server install records.
+- Valid, missing/staging, expired, invalid-signature and mismatch license fixtures using test keys.
+- Corrupt, incomplete and incompatible backup fixtures for negative testing.
+
+Fixtures containing secrets or customer content MUST NOT enter source control.

tests/fixtures/setup-matrix.json

@@ -0,0 +1,29 @@
+{
+  "schema": "cezen.test.setup_matrix.v1",
+  "configurations": [
+    {
+      "id": "representative-workstation",
+      "category": "workstation",
+      "commercial_label": "Nexus One AI Workstation",
+      "compatibility_profile": "starter",
+      "expected_server_tier_menu": false,
+      "journeys": ["valid", "field-staging", "invalid-license", "network-loss", "service-failure", "reboot-resume", "stale-readiness"]
+    },
+    {
+      "id": "representative-server-m",
+      "category": "server",
+      "commercial_label": "Server M",
+      "compatibility_tier": "basic",
+      "expected_server_tier_menu": true,
+      "journeys": ["valid", "field-staging", "invalid-license", "hardware-restriction", "network-loss", "service-failure", "reboot-resume", "stale-readiness"]
+    }
+  ],
+  "common_assertions": [
+    "non-secret progress persists",
+    "duplicate submission is idempotent",
+    "customer-facing state is truthful",
+    "safe next action is present",
+    "restricted-network help is local",
+    "WCAG 2.2 AA evidence is recorded"
+  ]
+}