Add personnel dataset backup filtering

scripts/backup/lib/common.sh

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
 BACKUP_SUPPORTED_SERVICES="postgres ory-postgres clickhouse ory-clickhouse config"
+BACKUP_SUPPORTED_DATASETS="full personnel"
 
 backup_repo_root() {
   if [[ -n "${BACKUP_REPO_ROOT:-}" ]]; then
@@ -65,6 +66,18 @@ normalize_service_filter() {
   printf '%s\n' "$normalized"
 }
 
+normalize_dataset_profile() {
+  local raw="${1:-full}"
+
+  [[ -n "$raw" ]] || raw="full"
+  if ! grep -qw -- "$raw" <<<"$BACKUP_SUPPORTED_DATASETS"; then
+    backup_die "unknown backup dataset: $raw"
+    return 1
+  fi
+
+  printf '%s\n' "$raw"
+}
+
 service_enabled() {
   local service="$1"
   local services="$2"