feat(school-logo): add logo thumbnail handling in school settings and update navbar display logic

Web/app.py

@@ -9935,6 +9935,7 @@ def admin_school_settings():
             'school_number': sanitize_form_value(request.form.get('school_number')),
             'it_admin': sanitize_form_value(request.form.get('it_admin')),
             'logo_path': sanitize_form_value(request.form.get('logo_path')),
+            'logo_thumb': sanitize_form_value(request.form.get('logo_thumb')),
         }
 
         uploaded_logo = request.files.get('logo_upload')
@@ -9950,8 +9951,7 @@ def admin_school_settings():
 
                 if saved_logo_filename:
                     school_info['logo_path'] = saved_logo_filename
-                    if saved_thumb_filename:
-                        school_info['logo_thumb'] = saved_thumb_filename
+                    school_info['logo_thumb'] = saved_thumb_filename or ''
 
                     # remove previous files if different
                     if previous_logo_path and previous_logo_path != saved_logo_filename:
@@ -9974,6 +9974,8 @@ def admin_school_settings():
 
         if not school_info.get('logo_path') and current_school.get('logo_path'):
             school_info['logo_path'] = current_school.get('logo_path', '')
+        if not school_info.get('logo_thumb') and current_school.get('logo_thumb'):
+            school_info['logo_thumb'] = current_school.get('logo_thumb', '')
 
         missing_fields = [
             label for label, key in [

Web/settings.py

@@ -69,6 +69,8 @@ DEFAULTS = {
         'school_number': '000000',
         'it_admin': 'IT-Beauftragte oder IT-Beauftragter',
         'logo_path': '',
+        'logo_thumb': '',
+        'logo_thumb': '',
     },
     'schoolPeriods': {
         "1": {"start": "08:00", "end": "08:45", "label": "1. Stunde (08:00 - 08:45)"},

Web/templates/base.html

@@ -1312,11 +1312,13 @@
     <nav class="navbar navbar-expand-lg navbar-dark" id="loginNavbar">
         <div class="container-fluid">
                     <a class="navbar-brand py-0" href="{{ url_for('home') }}">
-                        {% if school_info and (school_info.logo_thumb or school_info.logo_path) %}
-                            {% if school_info.logo_thumb %}
-                                <img src="{{ url_for('uploaded_file', filename=school_info.logo_thumb) }}" alt="{{ school_info.name or 'Schullogo' }}" class="invario-logo">
+                        {% set school_logo_thumb = school_info.get('logo_thumb') if school_info else '' %}
+                        {% set school_logo_path = school_info.get('logo_path') if school_info else '' %}
+                        {% if school_logo_thumb or school_logo_path %}
+                            {% if school_logo_thumb %}
+                                <img src="{{ url_for('uploaded_file', filename=school_logo_thumb) }}" alt="{{ school_info.name or 'Schullogo' }}" class="invario-logo">
                             {% else %}
-                                <img src="{{ url_for('uploaded_file', filename=school_info.logo_path) }}" alt="{{ school_info.name or 'Schullogo' }}" class="invario-logo">
+                                <img src="{{ url_for('uploaded_file', filename=school_logo_path) }}" alt="{{ school_info.name or 'Schullogo' }}" class="invario-logo">
                             {% endif %}
                         {% else %}
                             <img src="{{ url_for('static', filename='img/invario-logo.png') }}" alt="Invario" class="invario-logo">