feat(import): bulk tool import (CSV/JSON/YAML) for admins; NetBox-style help button

- Add POST /admin/tools/import with format auto-detect, CSV delimiters
  (comma/semicolon/tab), per-row validation via CreateToolBody, bulk insert,
  audit log entries per imported tool; gated by new 'tool-import' feature
  flag (premium/enterprise; admins always pass)
- Add tool-import-dialog UI (format tabs, delimiter select, textarea, file
  upload, result/error list) behind hasFeature('tool-import')
- Replace FieldHelp question marks and bare GuideHelp links with a NetBox-style
  'Hilfe/Help' outline button (HelpCircle + text) in form headers only
- Sync locales to 482 keys per language (de/en), update handbook docs
  (administration import section, index/plaene feature tables), regenerate
  API client + zod schemas, add yaml dependency

artifacts/toolrate/src/components/user-menu.tsx

@@ -164,11 +164,9 @@ export function UserMenu() {
 
     <Dialog open={pwOpen} onOpenChange={setPwOpen}>
       <DialogContent className="sm:max-w-md">
-        <DialogHeader>
-          <DialogTitle className="flex items-center gap-2">
-            {t("auth.changePassword")}
-            <GuideHelp guide="konto" label={t("auth.changePassword")} />
-          </DialogTitle>
+        <DialogHeader className="flex flex-row items-start justify-between gap-4 space-y-0">
+          <DialogTitle>{t("auth.changePassword")}</DialogTitle>
+          <GuideHelp guide="konto" label={t("auth.changePassword")} />
         </DialogHeader>
         {!user?.isLocal ? (
           <div className="space-y-4 py-2">