feat(worksheet-editor): Add OCR import panel for grid analysis data

Add OCRImportPanel component and ocr-integration utilities to import
OCR-analyzed data from the grid detection service into the worksheet editor.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

studio-v2/components/worksheet-editor/EditorToolbar.tsx

@@ -10,6 +10,7 @@ interface EditorToolbarProps {
   onOpenAIGenerator: () => void
   onOpenDocumentImporter: () => void
   onOpenCleanupPanel?: () => void
+  onOpenOCRImport?: () => void
   className?: string
 }
 
@@ -42,7 +43,7 @@ function ToolButton({ tool, icon, label, isActive, onClick, isDark }: ToolButton
   )
 }
 
-export function EditorToolbar({ onOpenAIGenerator, onOpenDocumentImporter, onOpenCleanupPanel, className = '' }: EditorToolbarProps) {
+export function EditorToolbar({ onOpenAIGenerator, onOpenDocumentImporter, onOpenCleanupPanel, onOpenOCRImport, className = '' }: EditorToolbarProps) {
   const { isDark } = useTheme()
   const { t } = useLanguage()
   const fileInputRef = useRef<HTMLInputElement>(null)
@@ -251,6 +252,23 @@ export function EditorToolbar({ onOpenAIGenerator, onOpenDocumentImporter, onOpe
         </button>
       )}
 
+      {/* OCR Import */}
+      {onOpenOCRImport && (
+        <button
+          onClick={onOpenOCRImport}
+          title="OCR Daten importieren (aus Grid Analyse)"
+          className={`w-12 h-12 flex items-center justify-center rounded-xl transition-all ${
+            isDark
+              ? 'text-green-300 hover:bg-green-500/20 hover:text-green-200'
+              : 'text-green-600 hover:bg-green-100 hover:text-green-700'
+          }`}
+        >
+          <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12" />
+          </svg>
+        </button>
+      )}
+
       <div className={`border-t ${dividerStyle}`} />
 
       {/* Table Tool */}