Add bulk deletion with checkboxes to Dashboard

- Add checkbox column with Select All in header
- Show selection count badge and Delete Selected button
- Enhanced confirmation modal for bulk operations
- Row highlighting for selected items
- Fixed button spacing (gap between View and Delete)
- Scrollable list in modal for many selected items

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/TrueCV.Web/Components/Pages/Dashboard.razor

@@ -153,15 +153,38 @@
         <div class="card border-0 shadow-sm">
             <div class="card-header py-3 border-bottom" style="background-color: var(--truecv-bg-surface);">
                 <div class="d-flex justify-content-between align-items-center">
+                    <div class="d-flex align-items-center gap-3">
                         <h5 class="mb-0 fw-bold">Recent CV Checks</h5>
+                        @if (_selectedIds.Count > 0)
+                        {
+                            <span class="badge bg-primary">@_selectedIds.Count selected</span>
+                        }
+                    </div>
+                    <div class="d-flex align-items-center gap-2">
+                        @if (_selectedIds.Count > 0)
+                        {
+                            <button class="btn btn-sm btn-outline-danger" @onclick="ConfirmDeleteSelected">
+                                <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="bi bi-trash3 me-1" viewBox="0 0 16 16">
+                                    <path d="M6.5 1h3a.5.5 0 0 1 .5.5v1H6v-1a.5.5 0 0 1 .5-.5ZM11 2.5v-1A1.5 1.5 0 0 0 9.5 0h-3A1.5 1.5 0 0 0 5 1.5v1H2.506a.58.58 0 0 0-.01 0H1.5a.5.5 0 0 0 0 1h.538l.853 10.66A2 2 0 0 0 4.885 16h6.23a2 2 0 0 0 1.994-1.84l.853-10.66h.538a.5.5 0 0 0 0-1h-.995a.59.59 0 0 0-.01 0H11Zm1.958 1-.846 10.58a1 1 0 0 1-.997.92h-6.23a1 1 0 0 1-.997-.92L3.042 3.5h9.916Zm-7.487 1a.5.5 0 0 1 .528.47l.5 8.5a.5.5 0 0 1-.998.06L5 5.03a.5.5 0 0 1 .47-.53Zm5.058 0a.5.5 0 0 1 .47.53l-.5 8.5a.5.5 0 1 1-.998-.06l.5-8.5a.5.5 0 0 1 .528-.47ZM8 4.5a.5.5 0 0 1 .5.5v8.5a.5.5 0 0 1-1 0V5a.5.5 0 0 1 .5-.5Z"/>
+                                </svg>
+                                Delete Selected
+                            </button>
+                        }
                         <span class="badge bg-light text-muted">@_checks.Count total</span>
                     </div>
                 </div>
+            </div>
             <div class="table-responsive">
                 <table class="table table-hover align-middle mb-0">
                     <thead>
                         <tr style="background-color: var(--truecv-bg-muted);">
-                            <th class="border-0 ps-4 py-3 text-uppercase small fw-semibold text-muted" style="letter-spacing: 0.05em;">Candidate</th>
+                            <th class="border-0 ps-3 py-3" style="width: 40px;">
+                                <input type="checkbox" class="form-check-input"
+                                       checked="@IsAllSelected()"
+                                       @onchange="ToggleSelectAll"
+                                       title="Select all" />
+                            </th>
+                            <th class="border-0 py-3 text-uppercase small fw-semibold text-muted" style="letter-spacing: 0.05em;">Candidate</th>
                             <th class="border-0 py-3 text-uppercase small fw-semibold text-muted" style="letter-spacing: 0.05em;">Uploaded</th>
                             <th class="border-0 py-3 text-uppercase small fw-semibold text-muted text-center" style="letter-spacing: 0.05em;">Status</th>
                             <th class="border-0 py-3 text-uppercase small fw-semibold text-muted text-center" style="letter-spacing: 0.05em;">Score</th>
@@ -171,9 +194,14 @@
                     <tbody>
                         @foreach (var check in _checks)
                         {
-                            <tr class="@(check.Status == "Completed" ? "cursor-pointer" : "")"
+                            <tr class="@(check.Status == "Completed" ? "cursor-pointer" : "") @(_selectedIds.Contains(check.Id) ? "table-active" : "")"
                                 @onclick="() => ViewReport(check)">
-                                <td class="ps-4 py-3">
+                                <td class="ps-3 py-3" @onclick:stopPropagation="true">
+                                    <input type="checkbox" class="form-check-input"
+                                           checked="@_selectedIds.Contains(check.Id)"
+                                           @onchange="() => ToggleSelection(check.Id)" />
+                                </td>
+                                <td class="py-3">
                                     <div class="d-flex align-items-center">
                                         <div class="file-icon-wrapper me-3">
                                             <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" class="bi bi-file-earmark-person text-primary" viewBox="0 0 16 16">
@@ -245,7 +273,7 @@
                                     }
                                 </td>
                                 <td class="py-3 pe-4 text-end">
-                                    <div class="btn-group" role="group">
+                                    <div class="d-flex justify-content-end align-items-center gap-2">
                                         @if (check.Status == "Completed")
                                         {
                                             <a href="/report/@check.Id" class="btn btn-sm btn-primary" @onclick:stopPropagation="true">
@@ -264,7 +292,7 @@
                                                 Retry
                                             </a>
                                         }
-                                        <button class="btn btn-sm btn-outline-danger" @onclick="() => DeleteCheck(check.Id)" @onclick:stopPropagation="true" title="Delete">
+                                        <button class="btn btn-sm btn-outline-danger" @onclick="() => ConfirmDelete(check)" @onclick:stopPropagation="true" title="Delete">
                                             <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="currentColor" class="bi bi-trash3" viewBox="0 0 16 16">
                                                 <path d="M6.5 1h3a.5.5 0 0 1 .5.5v1H6v-1a.5.5 0 0 1 .5-.5ZM11 2.5v-1A1.5 1.5 0 0 0 9.5 0h-3A1.5 1.5 0 0 0 5 1.5v1H2.506a.58.58 0 0 0-.01 0H1.5a.5.5 0 0 0 0 1h.538l.853 10.66A2 2 0 0 0 4.885 16h6.23a2 2 0 0 0 1.994-1.84l.853-10.66h.538a.5.5 0 0 0 0-1h-.995a.59.59 0 0 0-.01 0H11Zm1.958 1-.846 10.58a1 1 0 0 1-.997.92h-6.23a1 1 0 0 1-.997-.92L3.042 3.5h9.916Zm-7.487 1a.5.5 0 0 1 .528.47l.5 8.5a.5.5 0 0 1-.998.06L5 5.03a.5.5 0 0 1 .47-.53Zm5.058 0a.5.5 0 0 1 .47.53l-.5 8.5a.5.5 0 1 1-.998-.06l.5-8.5a.5.5 0 0 1 .528-.47ZM8 4.5a.5.5 0 0 1 .5.5v8.5a.5.5 0 0 1-1 0V5a.5.5 0 0 1 .5-.5Z"/>
                                             </svg>
@@ -280,6 +308,68 @@
     }
 </div>
 
+<!-- Delete Confirmation Modal -->
+@if (_showDeleteModal)
+{
+    <div class="modal fade show d-block" tabindex="-1" style="background-color: rgba(0,0,0,0.5);">
+        <div class="modal-dialog modal-dialog-centered">
+            <div class="modal-content">
+                <div class="modal-header border-0">
+                    <h5 class="modal-title fw-bold">
+                        <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="currentColor" class="bi bi-exclamation-triangle text-danger me-2" viewBox="0 0 16 16">
+                            <path d="M7.938 2.016A.13.13 0 0 1 8.002 2a.13.13 0 0 1 .063.016.146.146 0 0 1 .054.057l6.857 11.667c.036.06.035.124.002.183a.163.163 0 0 1-.054.06.116.116 0 0 1-.066.017H1.146a.115.115 0 0 1-.066-.017.163.163 0 0 1-.054-.06.176.176 0 0 1 .002-.183L7.884 2.073a.147.147 0 0 1 .054-.057zm1.044-.45a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566z"/>
+                            <path d="M7.002 12a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 5.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995z"/>
+                        </svg>
+                        Delete @(_isBulkDelete ? $"{_checksToDelete.Count} CV Checks" : "CV Check")
+                    </h5>
+                    <button type="button" class="btn-close" @onclick="CancelDelete"></button>
+                </div>
+                <div class="modal-body">
+                    @if (_isBulkDelete)
+                    {
+                        <p class="mb-2">Are you sure you want to delete <strong>@_checksToDelete.Count</strong> CV checks?</p>
+                        <div class="bg-light rounded p-3" style="max-height: 200px; overflow-y: auto;">
+                            @foreach (var check in _checksToDelete)
+                            {
+                                <div class="d-flex justify-content-between align-items-center py-1 @(check != _checksToDelete.Last() ? "border-bottom" : "")">
+                                    <span>@Path.GetFileNameWithoutExtension(check.OriginalFileName)</span>
+                                    <small class="text-muted">@check.CreatedAt.ToString("dd MMM yyyy")</small>
+                                </div>
+                            }
+                        </div>
+                    }
+                    else if (_checkToDelete != null)
+                    {
+                        <p class="mb-2">Are you sure you want to delete this CV check?</p>
+                        <div class="bg-light rounded p-3">
+                            <strong>@Path.GetFileNameWithoutExtension(_checkToDelete.OriginalFileName)</strong>
+                            <br />
+                            <small class="text-muted">Uploaded @_checkToDelete.CreatedAt.ToString("dd MMM yyyy 'at' HH:mm")</small>
+                        </div>
+                    }
+                    <p class="text-danger small mt-3 mb-0">
+                        <strong>This action cannot be undone.</strong> @(_isBulkDelete ? "All selected CVs and their" : "The CV and all") verification data will be permanently removed.
+                    </p>
+                </div>
+                <div class="modal-footer border-0">
+                    <button type="button" class="btn btn-outline-secondary" @onclick="CancelDelete">Cancel</button>
+                    <button type="button" class="btn btn-danger" @onclick="ExecuteDelete" disabled="@_isDeleting">
+                        @if (_isDeleting)
+                        {
+                            <span class="spinner-border spinner-border-sm me-1" role="status"></span>
+                            <span>Deleting...</span>
+                        }
+                        else
+                        {
+                            <span>Delete @(_isBulkDelete ? $"{_checksToDelete.Count} Checks" : "")</span>
+                        }
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+}
+
 <style>
     .cursor-pointer {
         cursor: pointer;
@@ -373,6 +463,7 @@
     private List<CVCheckDto> _checks = [];
     private bool _isLoading = true;
     private bool _isExporting;
+    private bool _isDeleting;
     private string? _errorMessage;
     private Guid _userId;
     private System.Threading.Timer? _pollingTimer;
@@ -380,6 +471,15 @@
     private volatile bool _disposed;
     private volatile bool _isOperationInProgress;
 
+    // Delete confirmation modal state
+    private bool _showDeleteModal;
+    private CVCheckDto? _checkToDelete;
+    private List<CVCheckDto> _checksToDelete = [];
+    private bool _isBulkDelete;
+
+    // Selection state
+    private HashSet<Guid> _selectedIds = [];
+
     protected override async Task OnInitializedAsync()
     {
         await LoadChecks();
@@ -575,28 +675,106 @@
         return false;
     }
 
-    private async Task DeleteCheck(Guid checkId)
+    // Selection methods
+    private void ToggleSelection(Guid id)
     {
-        if (_isOperationInProgress) return;
+        if (_selectedIds.Contains(id))
+            _selectedIds.Remove(id);
+        else
+            _selectedIds.Add(id);
+    }
 
-        _isOperationInProgress = true;
+    private void ToggleSelectAll()
+    {
+        if (IsAllSelected())
+            _selectedIds.Clear();
+        else
+            _selectedIds = _checks.Select(c => c.Id).ToHashSet();
+    }
+
+    private bool IsAllSelected() => _checks.Count > 0 && _selectedIds.Count == _checks.Count;
+
+    // Single delete
+    private void ConfirmDelete(CVCheckDto check)
+    {
+        _checkToDelete = check;
+        _checksToDelete = [];
+        _isBulkDelete = false;
+        _showDeleteModal = true;
+    }
+
+    // Bulk delete
+    private void ConfirmDeleteSelected()
+    {
+        _checksToDelete = _checks.Where(c => _selectedIds.Contains(c.Id)).ToList();
+        _checkToDelete = null;
+        _isBulkDelete = true;
+        _showDeleteModal = true;
+    }
+
+    private void CancelDelete()
+    {
+        _showDeleteModal = false;
+        _checkToDelete = null;
+        _checksToDelete = [];
+        _isBulkDelete = false;
+    }
+
+    private async Task ExecuteDelete()
+    {
+        if (_isDeleting) return;
+
+        _isDeleting = true;
         try
         {
-            var success = await CVCheckService.DeleteCheckAsync(checkId, _userId);
+            if (_isBulkDelete)
+            {
+                var failedCount = 0;
+                foreach (var check in _checksToDelete)
+                {
+                    var success = await CVCheckService.DeleteCheckAsync(check.Id, _userId);
                     if (success)
                     {
-                _checks.RemoveAll(c => c.Id == checkId);
+                        _checks.RemoveAll(c => c.Id == check.Id);
-                StateHasChanged();
+                        _selectedIds.Remove(check.Id);
+                    }
+                    else
+                    {
+                        failedCount++;
+                    }
+                }
+
+                if (failedCount > 0)
+                {
+                    _errorMessage = $"Failed to delete {failedCount} CV check(s). Please try again.";
+                }
+            }
+            else if (_checkToDelete != null)
+            {
+                var success = await CVCheckService.DeleteCheckAsync(_checkToDelete.Id, _userId);
+                if (success)
+                {
+                    _checks.RemoveAll(c => c.Id == _checkToDelete.Id);
+                    _selectedIds.Remove(_checkToDelete.Id);
+                }
+                else
+                {
+                    _errorMessage = "Failed to delete the CV check. Please try again.";
+                }
             }
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "Error deleting CV check {CheckId}", checkId);
+            Logger.LogError(ex, "Error deleting CV check(s)");
-            _errorMessage = "Failed to delete the CV check. Please try again.";
+            _errorMessage = "Failed to delete CV check(s). Please try again.";
         }
         finally
         {
-            _isOperationInProgress = false;
+            _isDeleting = false;
+            _showDeleteModal = false;
+            _checkToDelete = null;
+            _checksToDelete = [];
+            _isBulkDelete = false;
         }
     }
 }