CI-Cluster: Admin-DSN auf Datenbank postgres (Root-Tests ersetzen /postgres? im DSN)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

scripts/ci-pg-cluster.sh

@@ -14,13 +14,13 @@ start)
   runuser -u postgres -- "$PGBIN/initdb" -D "$dir/data" -A trust -U postgres >/dev/null
   runuser -u postgres -- "$PGBIN/pg_ctl" -D "$dir/data" -l "$dir/log" -w \
     -o "-p $port -c listen_addresses=127.0.0.1 -c unix_socket_directories=$dir" start >/dev/null
-  for db in admin_t tenant_a tenant_b; do
+  for db in tenant_a tenant_b; do
     "$PGBIN/psql" -h 127.0.0.1 -p "$port" -U postgres -qc "create database $db"
   done
   base="postgres://postgres@127.0.0.1:$port"
   {
     echo "NEXARCH_CI_PGDIR=$dir"
-    echo "TEST_ADMIN_DSN=$base/admin_t?sslmode=disable"
+    echo "TEST_ADMIN_DSN=$base/postgres?sslmode=disable"
     echo "TEST_TENANT_DSN=$base/tenant_a?sslmode=disable"
     echo "TEST_TENANT_DSN_B=$base/tenant_b?sslmode=disable"
     echo "REQUIRE_DB=1"