test: add schema v3 only absence gate

scripts/unified-deployment-smoke.sh

@@ -478,31 +478,8 @@ task13_seed_registry() {
   task13_run_logged "initialize bare workspace registry" \
     git init --bare --initial-branch=main "$TASK13_REMOTE"
   task13_run_logged "initialize workspace seed" git -C "$TASK13_SEED" init --initial-branch=main
-  cat >"$TASK13_SEED/workspaces/task13-smoke.yaml" <<'EOF'
-workspace:
-  schema_version: 3
-  id: task13-smoke
-  name: Task 13 Smoke
-  language: en
-dwh:
-  engine: postgres
-  database: warehouse
-  schema: analytics
-  supported_transports: [postgres_direct]
-semantic_index:
-  vector_store:
-    engine: qdrant
-    collection: task13-smoke
-    dimensions: 1024
-    distance: cosine
-  embedding:
-    provider: ollama_internal
-    model: qwen3-embedding:0.6b
-    dimensions: 1024
-llm_policy:
-  default: local-qwen/task13-smoke
-  allowed: [local-qwen/task13-smoke]
-EOF
+  cp "$TASK13_ROOT/scripts/fixtures/workspace-registry-task13.yaml" \
+    "$TASK13_SEED/workspaces/task13-smoke.yaml"
   task13_run_logged "commit initial workspace" git -C "$TASK13_SEED" add workspaces/task13-smoke.yaml
   task13_run_logged "commit initial workspace" git -C "$TASK13_SEED" \
     -c user.name='Task 13 Smoke' -c user.email='task13-smoke@example.invalid' \