feat: Add pagination to all list pages

Integrate Pager component into Jobs, Materials, Stock, Suppliers,
and Tools index pages with a page size of 25. Handles page
adjustment on delete when the last page becomes empty.

Also removes the Description column from the Materials table.

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

CutList.Web/Components/Pages/Stock/Index.razor

@@ -41,7 +41,7 @@ else
             </tr>
         </thead>
         <tbody>
-            @foreach (var item in stockItems)
+            @foreach (var item in pagedItems)
             {
                 <tr>
                     <td>@item.Material.Shape.GetDisplayName()</td>
@@ -69,6 +69,8 @@ else
             }
         </tbody>
     </table>
+
+    <Pager TotalCount="stockItems.Count" PageSize="pageSize" CurrentPage="currentPage" CurrentPageChanged="OnPageChanged" />
 }
 
 <ConfirmDialog @ref="deleteDialog"
@@ -80,10 +82,14 @@ else
 @code {
     private List<StockItem> stockItems = new();
     private bool loading = true;
+    private int currentPage = 1;
+    private int pageSize = 25;
     private ConfirmDialog deleteDialog = null!;
     private StockItem? itemToDelete;
     private string deleteMessage = "";
 
+    private IEnumerable<StockItem> pagedItems => stockItems.Skip((currentPage - 1) * pageSize).Take(pageSize);
+
     protected override async Task OnInitializedAsync()
     {
         stockItems = await StockItemService.GetAllAsync();
@@ -103,6 +109,12 @@ else
         {
             await StockItemService.DeleteAsync(itemToDelete.Id);
             stockItems = await StockItemService.GetAllAsync();
+
+            var totalPages = (int)Math.Ceiling((double)stockItems.Count / pageSize);
+            if (currentPage > totalPages && totalPages > 0)
+                currentPage = totalPages;
         }
     }
+
+    private void OnPageChanged(int page) => currentPage = page;
 }