improve(company): add user feedback for logo upload and conversion

- Flash success message showing format conversion (e.g. "JPG do WebP")
- Flash error message if conversion fails with suggestion to try another file
- Flash warning for unsupported file formats
- Form hint explains automatic WebP conversion

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

blueprints/public/routes_company_edit.py

@@ -242,7 +242,6 @@ def _save_description(db, company):
     if logo_file and logo_file.filename:
         import os
         from PIL import Image
-        import io
 
         allowed = {'png', 'jpg', 'jpeg', 'svg', 'webp'}
         ext = logo_file.filename.rsplit('.', 1)[-1].lower() if '.' in logo_file.filename else ''
@@ -254,15 +253,22 @@ def _save_description(db, company):
                 old_path = os.path.join(logo_dir, f"{company.slug}.{old_ext}")
                 if os.path.exists(old_path):
                     os.remove(old_path)
-            filepath = os.path.join(logo_dir, f"{company.slug}.webp")
+            try:
                 if ext == 'svg':
-                # SVG stays as-is (can't convert to webp)
                     filepath = os.path.join(logo_dir, f"{company.slug}.svg")
                     logo_file.save(filepath)
+                    flash('Logo zostało zapisane (format SVG).', 'success')
                 else:
+                    filepath = os.path.join(logo_dir, f"{company.slug}.webp")
                     img = Image.open(logo_file)
                     img.save(filepath, 'WEBP', quality=85)
+                    flash(f'Logo zostało przekonwertowane z {ext.upper()} do WebP i zapisane.', 'success')
                 logger.info(f"Logo uploaded for company {company.id}: {filepath}")
+            except Exception as e:
+                logger.error(f"Logo conversion failed for company {company.id}: {e}")
+                flash('Nie udało się przetworzyć pliku logo. Spróbuj inny plik (PNG, JPG lub WebP).', 'error')
+        else:
+            flash(f'Nieobsługiwany format pliku (.{ext}). Dozwolone: PNG, JPG, SVG, WebP.', 'warning')
 
 
 def _save_services(company):

templates/company_edit.html

@@ -848,7 +848,7 @@
                             </div>
                             <div style="flex: 1;">
                                 <input type="file" id="logo_file" name="logo_file" accept="image/png,image/jpeg,image/svg+xml,image/webp" class="form-input" style="padding: 8px;">
-                                <p class="form-help" style="margin-top: 4px;">PNG, JPG, SVG lub WebP. Zalecany rozmiar: min. 200x200px.</p>
+                                <p class="form-help" style="margin-top: 4px;">PNG, JPG, SVG lub WebP. Pliki graficzne zostaną automatycznie przekonwertowane do formatu WebP. Zalecany rozmiar: min. 200x200px.</p>
                             </div>
                         </div>
                     </div>