fix: resolve merge conflicts with main branch

Merge origin/main into feature branch, resolving 18 conflicts:
- app/api/__init__.py: add classification_rules_router alongside system_reset_router
- app/config.py: keep system reset settings from main
- app/models.py: keep ClassificationRuleModel alongside main's models
- app/utils/settings_service.py: keep factory reset settings from main
- app/views/__init__.py: keep system_reset_router from main
- tests/conftest.py: add ClassificationRuleModel import
- migrations/env.py: add ClassificationRuleModel import
- .env.demo, docs/*, frontend/*, mobile/*: keep additions from main
- BUILD_DATE, GIT_SHA, RUNTIME_INFO, VERSION, CHANGELOG.md: accept main's version

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

frontend/templates/base.html

@@ -177,6 +177,11 @@
                   <a href="/admin/backup" role="menuitem" class="flex items-center px-4 py-2 text-sm text-gray-700 hover:bg-gray-100">
                     <i class="fas fa-database w-4 mr-2 text-green-600" aria-hidden="true"></i> {{ _("nav.backup_restore") }}
                   </a>
+                  {% if enable_factory_reset %}
+                  <a href="/admin/system-reset" role="menuitem" class="flex items-center px-4 py-2 text-sm text-red-600 hover:bg-red-50">
+                    <i class="fas fa-skull-crossbones w-4 mr-2 text-red-500" aria-hidden="true"></i> {{ _("nav.system_reset") }}
+                  </a>
+                  {% endif %}
                   <a href="/admin/audit-logs" role="menuitem" class="flex items-center px-4 py-2 text-sm text-gray-700 hover:bg-gray-100">
                     <i class="fas fa-shield-halved w-4 mr-2 text-indigo-500" aria-hidden="true"></i> Audit Logs
                   </a>
@@ -445,6 +450,11 @@
                   <a href="/admin/backup" class="block px-3 py-3 rounded-md text-base font-medium text-gray-700 hover:text-gray-900 hover:bg-gray-50">
                     <i class="fas fa-database mr-2 text-green-500" aria-hidden="true"></i> {{ _("nav.backup_restore") }}
                   </a>
+                  {% if enable_factory_reset %}
+                  <a href="/admin/system-reset" class="block px-3 py-3 rounded-md text-base font-medium text-red-600 hover:text-red-800 hover:bg-red-50">
+                    <i class="fas fa-skull-crossbones mr-2 text-red-500" aria-hidden="true"></i> {{ _("nav.system_reset") }}
+                  </a>
+                  {% endif %}
                   <a href="/status" class="block px-3 py-3 rounded-md text-base font-medium text-gray-700 hover:text-gray-900 hover:bg-gray-50"
                      {% if request and request.url.path == '/status' %}aria-current="page"{% endif %}>
                     <i class="fas fa-circle-dot mr-2 text-gray-400" aria-hidden="true"></i> {{ _("nav.status") }}