fix: resolve merge conflicts with main branch

Merge origin/main into feature branch, resolving 3 conflicts:
- app/api/__init__.py: add classification_rules_router alongside new
  routers from main (audit_logs, i18n, mobile, compliance, translation)
- app/models.py: keep ClassificationRuleModel alongside new models from
  main (MobileDevice, ComplianceTemplate, PipelineRoutingRule)
- tests/conftest.py: import both ClassificationRuleModel and new models
  from main (AuditLog, ComplianceTemplate)

Also renumber migration from 027 to 037 to chain from the latest
migration on main (036_add_document_translation_fields).

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

tests/test_db_wizard_api.py

@@ -345,7 +345,7 @@ class TestSettingsPageWizardLink:
         template_path = Path(__file__).resolve().parent.parent / "frontend" / "templates" / "settings.html"
         content = template_path.read_text()
         assert "/database-wizard" in content
-        assert "DB Wizard" in content
+        assert "settings.db_wizard_btn" in content  # i18n key (resolves to "DB Wizard")
 
     def test_settings_template_has_help_link_rendering(self):
         """Test that the settings template renders help_link metadata."""