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/pages/trash.tsx

@@ -15,7 +15,6 @@ import {
 import { useQueryClient } from "@tanstack/react-query";
 import { useAuth } from "@/hooks/use-auth";
 import { Layout } from "@/components/layout";
-import { GuideHelp } from "@/components/guide-help";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Badge } from "@/components/ui/badge";
@@ -157,9 +156,8 @@ export default function Trash() {
     <Layout>
       <div className="space-y-6 pb-10">
         <div>
-          <h1 className="text-3xl font-bold tracking-tight mb-2 flex items-center gap-2">
+          <h1 className="text-3xl font-bold tracking-tight mb-2">
             {t("trash.title")}
-            <GuideHelp guide="papierkorb" label={t("trash.title")} />
           </h1>
           <p className="text-muted-foreground">{t("trash.subtitle")}</p>
         </div>