fix(deploy): prepare server auth root before configure

scripts/test-task13-runtime-fixtures.sh

@@ -80,6 +80,20 @@ else
   TASK13_SESSION_PASSWORD="fixture-private-token-$profile"
   TASK13_SESSION_MIGRATOR_PASSWORD="fixture-migrator-token-$profile"
   task13_write_server_fixture_files
+  original_task13_run_logged="$(declare -f task13_run_logged)"
+  ownership_calls="$fixture/server-auth-ownership.calls"
+  task13_run_logged() {
+    printf '%s\n' "$*" >"$ownership_calls"
+  }
+  task13_prepare_server_auth_canonical_root
+  grep -Fxq -- \
+    "prepare server authentication canonical root sudo -n -- install -d -o 0 -g 0 -m 0700 -- $TASK13_AUTH_ROOT" \
+    "$ownership_calls" || {
+      echo "server auth fixture does not prepare a root-owned private canonical directory" >&2
+      exit 1
+    }
+  unset -f task13_run_logged
+  eval "$original_task13_run_logged"
   compose_files=(
     -f "$root/compose.yaml"
     -f "$root/deploy/compose.server.yaml"

scripts/unified-deployment-smoke.sh

@@ -944,6 +944,16 @@ task13_configure_server_oidc_authentication() {
     --authentik-base-url "https://task13-fake-oidc:9443" --user-group task13-users --admin-group task13-admins
 }
 
+task13_prepare_server_auth_canonical_root() {
+  [[ "${TASK13_PROFILE:-}" == server \
+    && "$TASK13_AUTH_ROOT" == "$TASK13_TMP/auth" \
+    && ! -L "$TASK13_AUTH_ROOT" \
+    && ( ! -e "$TASK13_AUTH_ROOT" || -d "$TASK13_AUTH_ROOT" ) ]] \
+    || task13_fail "refusing to prepare an unexpected server authentication root"
+  task13_run_logged "prepare server authentication canonical root" sudo -n -- \
+    install -d -o 0 -g 0 -m 0700 -- "$TASK13_AUTH_ROOT"
+}
+
 task13_prepare_local_auth_runtime() {
   local owner_label
   owner_label="$(docker volume inspect --format '{{ index .Labels "io.thothii.task13.run" }}' \
@@ -2844,6 +2854,7 @@ task13_server_smoke_main() {
   task13_write_server_fixture_files
   task13_seed_registry
   task13_build_tht
+  task13_prepare_server_auth_canonical_root
   task13_configure_server_oidc_authentication
   task13_start_server_stack
   task13_record_project_image_evidence