refactor: UI improvements and code cleanup

Frontend:
- DetectionsList: Simplify columns, improve truncation and display for IPs, hosts, bot info
- IncidentsView: Replace metric cards with compact stat cards (unique IPs, known bots, ML anomalies, threat levels)
- InvestigationView: Add section navigation anchors, reorganize layout with proper IDs
- ThreatIntelView: Add navigation links to investigation pages, add comment column, improve table layout

Backend:
- Various route and model adjustments
- Configuration updates

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

backend/routes/audit.py

@@ -1,12 +1,14 @@
 """
 Routes pour l'audit et les logs d'activité
 """
+import logging
 from fastapi import APIRouter, HTTPException, Query, Request
-from typing import List, Optional
-from datetime import datetime, timedelta
+from typing import Optional
+from datetime import datetime
 from ..database import db
 
 router = APIRouter(prefix="/api/audit", tags=["audit"])
+logger = logging.getLogger(__name__)
 
 
 @router.post("/logs")
@@ -50,8 +52,8 @@ async def create_audit_log(
         try:
             db.query(insert_query, params)
         except Exception as e:
-            # Table might not exist yet, log warning
-            print(f"Warning: Could not insert audit log: {e}")
+            # La table peut ne pas encore exister — on logue mais on ne bloque pas l'appelant
+            logger.warning(f"Could not insert audit log: {e}")
         
         return {
             "status": "success",