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/i18n/locales/en.json

@@ -57,6 +57,7 @@
     "language": "Language",
   "viewDetails": "View details",
   "guideTooltip": "Guide in the documentation",
+  "help": "Help",
   "viewMode": "View mode",
   "viewGrid": "Grid",
   "viewTable": "Table",
@@ -304,7 +305,6 @@
     "parameter": "Parameter",
     "noResults": "No results",
     "fields": "Fields",
-    "fieldHelpHint": "Note: form fields link via the ? icon directly to the respective rows of this table.",
     "name": "Name",
     "in": "In",
     "requestBody": "Request Body"
@@ -402,7 +402,27 @@
     "moveToTrashAction": "Move to trash",
     "toastMoved": "Tools moved to trash",
     "toastMovedSub": "{{count}} tool(s) moved to trash.",
-    "toastMoveFailed": "Failed to move to trash"
+    "toastMoveFailed": "Failed to move to trash",
+    "importTitle": "Import tools",
+    "importSub": "Import multiple tools at once — as CSV, JSON or YAML (premium feature).",
+    "importButton": "Import",
+    "importFormatAuto": "Auto",
+    "importFormatAutoSub": "The format is detected automatically (CSV, JSON or YAML).",
+    "importDelimiter": "CSV delimiter",
+    "importDelimiterAuto": "Auto-detect",
+    "importDelimiterComma": "Comma",
+    "importDelimiterSemicolon": "Semicolon",
+    "importDelimiterTab": "Tab",
+    "importCsvSub": "Columns: name, description, category, websiteUrl, iconUrl, features, tags. Separate features/tags with |. The first line holds the column names.",
+    "importJsonSub": "A JSON object or array of objects with the fields name, description, category, websiteUrl, iconUrl, features, tags.",
+    "importYamlSub": "A YAML list of objects (or a single object) with the fields name, description, category, websiteUrl, iconUrl, features, tags.",
+    "importFile": "Upload file",
+    "importTextareaPlaceholder": "name;description;category;features;tags\nMy Tool;A great description;Monitoring;Deployment|Open Source;devops",
+    "importing": "Importing…",
+    "importDone": "{{count}} of {{total}} tools imported successfully.",
+    "importErrors": "{{count}} rows with errors:",
+    "importErrorRow": "Row {{row}}",
+    "toastImportDone": "Tools imported successfully"
   },
   "analytics": {
     "title": "Platform Analytics",