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/config.py

@@ -2,7 +2,6 @@
 Configuration du Dashboard Bot Detector
 """
 from pydantic_settings import BaseSettings
-from typing import Optional
 
 
 class Settings(BaseSettings):
@@ -12,20 +11,14 @@ class Settings(BaseSettings):
     CLICKHOUSE_DB: str = "mabase_prod"
     CLICKHOUSE_USER: str = "admin"
     CLICKHOUSE_PASSWORD: str = ""
-    
+
     # API
     API_HOST: str = "0.0.0.0"
     API_PORT: int = 8000
-    
-    # Frontend
-    FRONTEND_PORT: int = 3000
-    
+
     # CORS
     CORS_ORIGINS: list = ["http://localhost:3000", "http://127.0.0.1:3000"]
-    
-    # Rate limiting
-    RATE_LIMIT_PER_MINUTE: int = 100
-    
+
     class Config:
         env_file = ".env"
         case_sensitive = True