Add dropdown selector for individual row field changes in Dimensions tab

- Added dropdown that shows unique values from the group (outer/units/moq)
- Click icon to open dropdown and select value to change single row
- Icon turns green on hover (emerald color)
- Replaces sync all icon with ChevronDown dropdown icon

src/components/DimensionsView.tsx

@@ -60,6 +60,7 @@ export function DimensionsView({ data, headers, onEdit, onSaveRow, onCaptureStat
   const [hoveredIndex, setHoveredIndex] = useState<number | null>(null);
   const [lastClickedIndex, setLastClickedIndex] = useState<number | null>(null);
   const [activeClusterKey, setActiveClusterKey] = useState<string | null>(null);
+  const [openDropdown, setOpenDropdown] = useState<{ rowIndex: number; field: 'outer' | 'units' | 'moq' } | null>(null);
 
   const isDraggingRef = React.useRef(false);
   const dragStartRef = React.useRef<number | null>(null);
@@ -253,6 +254,18 @@ export function DimensionsView({ data, headers, onEdit, onSaveRow, onCaptureStat
     return () => window.removeEventListener('mouseup', handleGlobalMouseUp);
   }, [nearDuplicateClusters]);
 
+  React.useEffect(() => {
+    const handleClickOutside = (e: MouseEvent) => {
+      if (openDropdown && !(e.target as Element)?.closest('.dropdown-container')) {
+        setOpenDropdown(null);
+      }
+    };
+    if (openDropdown) {
+      document.addEventListener('click', handleClickOutside);
+      return () => document.removeEventListener('click', handleClickOutside);
+    }
+  }, [openDropdown]);
+
   const toggleGroup = (key: string) => {
     const next = new Set(expandedGroups);
     if (next.has(key)) {
@@ -271,6 +284,47 @@ export function DimensionsView({ data, headers, onEdit, onSaveRow, onCaptureStat
     setPendingAction({ group, sourceRow, fieldType: 'all' });
   };
 
+  const handleSingleFieldChange = async (rowIndex: number, field: 'outer' | 'units' | 'moq', value: string | number) => {
+    const row = data[rowIndex];
+    const updatedRow = [...row];
+    
+    if (field === 'outer') {
+      const parts = String(value).split('x').map(Number);
+      if (parts.length === 3) {
+        updatedRow[COLUMNS.OUTER_L] = parts[0];
+        updatedRow[COLUMNS.OUTER_W] = parts[1];
+        updatedRow[COLUMNS.OUTER_H] = parts[2];
+      }
+    } else if (field === 'units') {
+      updatedRow[COLUMNS.UNITS_OUTER] = value;
+    } else if (field === 'moq') {
+      updatedRow[COLUMNS.MOQ] = value;
+    }
+    
+    await onSaveRow(rowIndex, updatedRow);
+    onCaptureState(`Updated ${field} for article ${row[COLUMNS.ARTICLE_NO]}`);
+    setOpenDropdown(null);
+  };
+
+  const getUniqueGroupValues = (group: DimensionGroup, field: 'outer' | 'units' | 'moq'): string[] => {
+    const values = new Set<string>();
+    group.rows.forEach(({ row }) => {
+      if (field === 'outer') {
+        const outer = `${row[COLUMNS.OUTER_L]}x${row[COLUMNS.OUTER_W]}x${row[COLUMNS.OUTER_H]}`;
+        if (outer !== 'undefinedxundefinedxundefined' && row[COLUMNS.OUTER_L] != null) {
+          values.add(outer);
+        }
+      } else if (field === 'units') {
+        const val = String(row[COLUMNS.UNITS_OUTER] ?? '');
+        if (val) values.add(val);
+      } else if (field === 'moq') {
+        const val = String(row[COLUMNS.MOQ] ?? '');
+        if (val) values.add(val);
+      }
+    });
+    return Array.from(values).sort();
+  };
+
   const handleVerifyGroup = (e: React.MouseEvent, group: DimensionGroup) => {
     e.stopPropagation();
     group.rows.forEach(({ row, index }) => {
@@ -738,48 +792,105 @@ export function DimensionsView({ data, headers, onEdit, onSaveRow, onCaptureStat
                           "px-4 py-3 font-mono",
                           group.discrepancies.outer ? "text-amber-300" : "text-slate-400"
                         )}>
-                          <div className="flex items-center gap-2 group/cell">
+                          <div className="flex items-center gap-2 group/cell dropdown-container relative">
                             <button 
-                              onClick={() => handleSyncField(group, row, 'outer')}
+                              onClick={(e) => {
+                                e.stopPropagation();
+                                setOpenDropdown(openDropdown?.rowIndex === index && openDropdown?.field === 'outer' ? null : { rowIndex: index, field: 'outer' });
+                              }}
                               disabled={syncing?.key === group.key}
-                              title="Apply these Outer Dims to all in group"
+                              title="Change value"
                               className="p-1 hover:bg-emerald-600/20 text-slate-600 hover:text-emerald-400 rounded opacity-0 group-hover:opacity-100 transition-opacity"
                             >
-                               {syncing?.key === group.key && syncing?.field === 'outer' ? <Loader2 className="w-3 h-3 animate-spin" /> : <Layers className="w-3 h-3" />}
+                               {syncing?.key === group.key && syncing?.field === 'outer' ? <Loader2 className="w-3 h-3 animate-spin" /> : <ChevronDown className="w-3 h-3" />}
                             </button>
                             <span>{row[COLUMNS.OUTER_L] !== undefined && row[COLUMNS.OUTER_L] !== null ? row[COLUMNS.OUTER_L] : '-'} × {row[COLUMNS.OUTER_W] !== undefined && row[COLUMNS.OUTER_W] !== null ? row[COLUMNS.OUTER_W] : '-'} × {row[COLUMNS.OUTER_H] !== undefined && row[COLUMNS.OUTER_H] !== null ? row[COLUMNS.OUTER_H] : '-'}</span>
+                            {openDropdown?.rowIndex === index && openDropdown?.field === 'outer' && (
+                              <div className="absolute top-full left-0 mt-1 bg-slate-800 border border-slate-600 rounded-md shadow-lg z-50 py-1 min-w-[150px]">
+                                {getUniqueGroupValues(group, 'outer').map(val => (
+                                  <button
+                                    key={val}
+                                    onClick={(e) => {
+                                      e.stopPropagation();
+                                      handleSingleFieldChange(index, 'outer', val);
+                                    }}
+                                    className="w-full px-3 py-1.5 text-left text-xs text-slate-300 hover:bg-emerald-600/20 hover:text-emerald-400 transition-colors"
+                                  >
+                                    {val}
+                                  </button>
+                                ))}
+                              </div>
+                            )}
                           </div>
                         </td>
                         <td className={cn(
                           "px-4 py-3",
                           group.discrepancies.units ? "text-amber-300 font-bold" : "text-slate-400"
                         )}>
-                          <div className="flex items-center gap-2 group/cell">
+                          <div className="flex items-center gap-2 group/cell dropdown-container relative">
                             <button 
-                              onClick={() => handleSyncField(group, row, 'units')}
+                              onClick={(e) => {
+                                e.stopPropagation();
+                                setOpenDropdown(openDropdown?.rowIndex === index && openDropdown?.field === 'units' ? null : { rowIndex: index, field: 'units' });
+                              }}
                               disabled={syncing?.key === group.key}
-                              title="Apply this Units/Outer to all in group"
+                              title="Change value"
                               className="p-1 hover:bg-emerald-600/20 text-slate-600 hover:text-emerald-400 rounded opacity-0 group-hover:opacity-100 transition-opacity"
                             >
-                               {syncing?.key === group.key && syncing?.field === 'units' ? <Loader2 className="w-3 h-3 animate-spin" /> : <Layers className="w-3 h-3" />}
+                               {syncing?.key === group.key && syncing?.field === 'units' ? <Loader2 className="w-3 h-3 animate-spin" /> : <ChevronDown className="w-3 h-3" />}
                             </button>
                             <span>{row[COLUMNS.UNITS_OUTER] !== undefined && row[COLUMNS.UNITS_OUTER] !== null ? row[COLUMNS.UNITS_OUTER] : '-'}</span>
+                            {openDropdown?.rowIndex === index && openDropdown?.field === 'units' && (
+                              <div className="absolute top-full left-0 mt-1 bg-slate-800 border border-slate-600 rounded-md shadow-lg z-50 py-1 min-w-[100px]">
+                                {getUniqueGroupValues(group, 'units').map(val => (
+                                  <button
+                                    key={val}
+                                    onClick={(e) => {
+                                      e.stopPropagation();
+                                      handleSingleFieldChange(index, 'units', val);
+                                    }}
+                                    className="w-full px-3 py-1.5 text-left text-xs text-slate-300 hover:bg-emerald-600/20 hover:text-emerald-400 transition-colors"
+                                  >
+                                    {val}
+                                  </button>
+                                ))}
+                              </div>
+                            )}
                           </div>
                         </td>
                         <td className={cn(
                           "px-4 py-3",
                           group.discrepancies.moq ? "text-amber-300 font-bold" : "text-slate-400"
                         )}>
-                          <div className="flex items-center gap-2 group/cell">
+                          <div className="flex items-center gap-2 group/cell dropdown-container relative">
                             <button 
-                              onClick={() => handleSyncField(group, row, 'moq')}
+                              onClick={(e) => {
+                                e.stopPropagation();
+                                setOpenDropdown(openDropdown?.rowIndex === index && openDropdown?.field === 'moq' ? null : { rowIndex: index, field: 'moq' });
+                              }}
                               disabled={syncing?.key === group.key}
-                              title="Apply this MOQ to all in group"
+                              title="Change value"
                               className="p-1 hover:bg-emerald-600/20 text-slate-600 hover:text-emerald-400 rounded opacity-0 group-hover:opacity-100 transition-opacity"
                             >
-                               {syncing?.key === group.key && syncing?.field === 'moq' ? <Loader2 className="w-3 h-3 animate-spin" /> : <Layers className="w-3 h-3" />}
+                               {syncing?.key === group.key && syncing?.field === 'moq' ? <Loader2 className="w-3 h-3 animate-spin" /> : <ChevronDown className="w-3 h-3" />}
                             </button>
                             <span>{row[COLUMNS.MOQ] !== undefined && row[COLUMNS.MOQ] !== null ? row[COLUMNS.MOQ] : '-'}</span>
+                            {openDropdown?.rowIndex === index && openDropdown?.field === 'moq' && (
+                              <div className="absolute top-full left-0 mt-1 bg-slate-800 border border-slate-600 rounded-md shadow-lg z-50 py-1 min-w-[100px]">
+                                {getUniqueGroupValues(group, 'moq').map(val => (
+                                  <button
+                                    key={val}
+                                    onClick={(e) => {
+                                      e.stopPropagation();
+                                      handleSingleFieldChange(index, 'moq', val);
+                                    }}
+                                    className="w-full px-3 py-1.5 text-left text-xs text-slate-300 hover:bg-emerald-600/20 hover:text-emerald-400 transition-colors"
+                                  >
+                                    {val}
+                                  </button>
+                                ))}
+                              </div>
+                            )}
                           </div>
                         </td>
                         <td className="px-4 py-3 text-right">