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/Home.razor

@@ -22,7 +22,7 @@
                 </div>
             </div>
             <div class="col-lg-6 text-center mt-4 mt-lg-0">
-                <img src="/images/TrueCV_Logo.png" alt="TrueCV" class="hero-logo" style="filter: brightness(0) invert(1); opacity: 0.9;" />
+                <img src="images/TrueCV_Logo.png" alt="TrueCV" class="hero-logo" style="max-height: 200px;" />
             </div>
         </div>
     </div>