Add multi-file upload, auto-refresh reports, and CSV export

- Allow recruiters to upload multiple CVs at once with batch processing
- Add auto-refresh polling on Report page during CV processing
- Add CSV export button on Dashboard for completed check summaries
- Update logo and reset to Bootstrap default styling

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

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

@@ -1,11 +1,13 @@
 @page "/report/{Id:guid}"
 @attribute [Authorize]
 @rendermode InteractiveServer
+@implements IDisposable
 
 @inject ICVCheckService CVCheckService
 @inject NavigationManager NavigationManager
 @inject AuthenticationStateProvider AuthenticationStateProvider
 @inject ILogger<Report> Logger
+@inject IJSRuntime JSRuntime
 
 <PageTitle>Verification Report - TrueCV</PageTitle>
 
@@ -96,7 +98,7 @@
                 </p>
             </div>
             <div class="col-auto">
-                <button class="btn btn-outline-primary" @onclick="DownloadReport">
+                <button class="btn btn-outline-primary" @onclick="DownloadReport" disabled="@(_report is null)">
                     <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-download me-1" viewBox="0 0 16 16">
                         <path d="M.5 9.9a.5.5 0 0 1 .5.5v2.5a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-2.5a.5.5 0 0 1 1 0v2.5a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2v-2.5a.5.5 0 0 1 .5-.5z"/>
                         <path d="M7.646 11.854a.5.5 0 0 0 .708 0l3-3a.5.5 0 0 0-.708-.708L8.5 10.293V1.5a.5.5 0 0 0-1 0v8.793L5.354 8.146a.5.5 0 1 0-.708.708l3 3z"/>
@@ -468,10 +470,48 @@
     private bool _isLoading = true;
     private string? _errorMessage;
     private Guid _userId;
+    private System.Threading.Timer? _pollingTimer;
+    private bool _isPolling;
 
     protected override async Task OnInitializedAsync()
     {
         await LoadData();
+        StartPollingIfNeeded();
+    }
+
+    private void StartPollingIfNeeded()
+    {
+        if (_check is not null && (_check.Status == "Processing" || _check.Status == "Pending") && !_isPolling)
+        {
+            _isPolling = true;
+            _pollingTimer = new System.Threading.Timer(async _ =>
+            {
+                await InvokeAsync(async () =>
+                {
+                    await LoadData();
+
+                    // Stop polling if processing is complete or failed
+                    if (_check is null || _check.Status == "Completed" || _check.Status == "Failed")
+                    {
+                        StopPolling();
+                    }
+
+                    StateHasChanged();
+                });
+            }, null, TimeSpan.FromSeconds(3), TimeSpan.FromSeconds(3));
+        }
+    }
+
+    private void StopPolling()
+    {
+        _isPolling = false;
+        _pollingTimer?.Dispose();
+        _pollingTimer = null;
+    }
+
+    public void Dispose()
+    {
+        StopPolling();
     }
 
     private async Task LoadData()
@@ -524,9 +564,76 @@
         await LoadData();
     }
 
-    private void DownloadReport()
+    private async Task DownloadReport()
     {
-        // TODO: Implement report download functionality
+        if (_report is null || _check is null) return;
+
+        try
+        {
+            var reportData = new
+            {
+                CandidateName = _check.OriginalFileName,
+                GeneratedAt = _report.GeneratedAt,
+                OverallScore = _report.OverallScore,
+                ScoreLabel = _report.ScoreLabel,
+                EmploymentVerifications = _report.EmploymentVerifications.Select(v => new
+                {
+                    v.ClaimedCompany,
+                    ClaimedStartDate = v.ClaimedStartDate?.ToString("yyyy-MM"),
+                    ClaimedEndDate = v.ClaimedEndDate?.ToString("yyyy-MM"),
+                    v.MatchedCompanyName,
+                    v.MatchedCompanyNumber,
+                    v.MatchScore,
+                    v.IsVerified,
+                    v.VerificationNotes
+                }),
+                TimelineAnalysis = new
+                {
+                    _report.TimelineAnalysis.TotalGapMonths,
+                    _report.TimelineAnalysis.TotalOverlapMonths,
+                    Gaps = _report.TimelineAnalysis.Gaps.Select(g => new
+                    {
+                        StartDate = g.StartDate.ToString("yyyy-MM"),
+                        EndDate = g.EndDate.ToString("yyyy-MM"),
+                        g.Months
+                    }),
+                    Overlaps = _report.TimelineAnalysis.Overlaps.Select(o => new
+                    {
+                        o.Company1,
+                        o.Company2,
+                        OverlapStart = o.OverlapStart.ToString("yyyy-MM"),
+                        OverlapEnd = o.OverlapEnd.ToString("yyyy-MM"),
+                        o.Months
+                    })
+                },
+                Flags = _report.Flags.Select(f => new
+                {
+                    f.Severity,
+                    f.Title,
+                    f.Description,
+                    f.ScoreImpact
+                })
+            };
+
+            var json = System.Text.Json.JsonSerializer.Serialize(reportData, new System.Text.Json.JsonSerializerOptions
+            {
+                WriteIndented = true
+            });
+
+            var fileName = $"TrueCV_Report_{Path.GetFileNameWithoutExtension(_check.OriginalFileName)}_{DateTime.Now:yyyyMMdd}.json";
+            await DownloadFileAsync(fileName, json, "application/json");
+        }
+        catch (Exception ex)
+        {
+            Logger.LogError(ex, "Error downloading report");
+        }
+    }
+
+    private async Task DownloadFileAsync(string fileName, string content, string contentType)
+    {
+        var bytes = System.Text.Encoding.UTF8.GetBytes(content);
+        var base64 = Convert.ToBase64String(bytes);
+        await JSRuntime.InvokeVoidAsync("downloadFile", fileName, base64, contentType);
     }
 
     private static string GetScoreColorClass(int score)