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_file_upload.py

@@ -345,7 +345,7 @@ class TestUploadErrorHandling:
 
     def test_upload_disk_write_failure(self, client: TestClient):
         """Test handling of disk write failures."""
-        with patch("builtins.open", side_effect=IOError("Disk full")):
+        with patch("aiofiles.open", side_effect=IOError("Disk full")):
             pdf_content = b"%PDF-1.4\n%EOF"
 
             response = client.post(