Fix: Implement dynamic column detection to handle Excel structure changes (insertion of PM Classification). This fixes the Missing data error in Pricing Units and other views.

src/components/EditPanel.tsx

@@ -1,5 +1,6 @@
 import React, { useState, useRef, useCallback } from 'react';
-import { ExcelRow, COLUMNS } from '../types';
+import { ExcelRow } from '../types';
+import { useColumns } from '../contexts/ColumnsContext';
 import { X, Sparkles, Save, Loader2, Languages, Package, CheckCircle2, Mic, MicOff } from 'lucide-react';
 import { generateGemini } from '../services/gemini';
 import { cn } from '../lib/utils';
@@ -126,6 +127,7 @@ const FieldEditor = ({
 );
 
 export function EditPanel({ row, rowIndex, onSave, onClose, onCaptureState }: EditPanelProps) {
+  const COLUMNS = useColumns();
   const [formData, setFormData] = useState({
     longDe: row[COLUMNS.LONG_DE] || '',
     longEn: row[COLUMNS.LONG_EN] || '',