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>

app/views/audit_logs.py

@@ -0,0 +1,46 @@
+"""
+Audit log viewer UI — admin-only page with filtering and SIEM status.
+"""
+
+import logging
+
+from fastapi import Depends, HTTPException, Request, status
+from sqlalchemy.orm import Session
+
+from app.views.base import APIRouter, get_db, require_login, settings, templates
+from app.views.settings import require_admin_access
+
+logger = logging.getLogger(__name__)
+router = APIRouter()
+
+
+@router.get("/admin/audit-logs")
+@require_login
+@require_admin_access
+async def audit_logs_page(request: Request, db: Session = Depends(get_db)):
+    """Comprehensive audit log viewer with filtering controls.
+
+    Displays a chronological log of all significant actions: logins,
+    document operations, settings changes, and admin actions.  The
+    actual data is fetched client-side via the ``/api/audit-logs`` JSON
+    endpoint so that filters, pagination, and live refresh work without
+    full-page reloads.
+    """
+    try:
+        siem_enabled = settings.audit_siem_enabled
+        siem_transport = settings.audit_siem_transport if siem_enabled else None
+        return templates.TemplateResponse(
+            "audit_logs.html",
+            {
+                "request": request,
+                "app_version": settings.version,
+                "siem_enabled": siem_enabled,
+                "siem_transport": siem_transport,
+            },
+        )
+    except Exception as e:
+        logger.error("Error loading audit logs page: %s", e)
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Failed to load audit logs page",
+        )