fix: 6 bug fixes - timezone CST, knowledge_ids mismatch, skill uninstall, dashboard stats, chat knowledge retrieval, skill selection

backend/python/app/api/admin/dashboard.py

@@ -10,10 +10,13 @@ from ...models import (
 )
 from ...auth import get_current_admin
 from ...middleware.log_service import LogService
-from datetime import datetime, date
+from datetime import datetime, date, timezone, timedelta
 
 router = APIRouter()
 
+# CST timezone (UTC+8)
+CST_TZ = timezone(timedelta(hours=8))
+
 
 @router.get("/stats")
 async def get_dashboard_stats(
@@ -21,7 +24,11 @@ async def get_dashboard_stats(
     db: Session = Depends(get_db),
 ):
     """获取管理员仪表盘统计数据"""
-    today = date.today()
+    # Use CST timezone for "today" since container uses UTC but users are in CST
+    now_cst = datetime.now(CST_TZ)
+    today_cst = now_cst.date()
+    # Convert CST today start to UTC for DB comparison
+    today_start_utc = datetime(now_cst.year, now_cst.month, now_cst.day, 0, 0, 0, tzinfo=CST_TZ).astimezone(timezone.utc).replace(tzinfo=None)
 
     active_users = db.query(func.count(User.id)).filter(
         User.status == "active"
@@ -31,12 +38,13 @@ async def get_dashboard_stats(
         AIModel.is_enabled == True
     ).scalar() or 0
 
+    # Use range comparison instead of func.date() for timezone-correct results
     today_orders = db.query(func.count(Order.id)).filter(
-        func.date(Order.created_at) == today
+        Order.created_at >= today_start_utc
     ).scalar() or 0
 
     today_tokens = db.query(func.sum(TokenUsageLog.total_tokens)).filter(
-        func.date(TokenUsageLog.created_at) == today
+        TokenUsageLog.created_at >= today_start_utc
     ).scalar() or 0
 
     total_tokens = db.query(func.sum(TokenUsageLog.total_tokens)).scalar() or 0
@@ -47,6 +55,7 @@ async def get_dashboard_stats(
         "today_orders": today_orders,
         "today_tokens": int(today_tokens),
         "total_tokens": int(total_tokens),
+        "server_time": now_cst.isoformat(),
     }
 
 
@@ -69,12 +78,20 @@ async def get_recent_logs(
             "target_id": log.target_id,
             "detail": log.detail,
             "ip": log.ip,
-            "created_at": log.created_at.isoformat() if log.created_at else None,
+            "created_at": _format_cst(log.created_at),
         }
         for log in logs
     ]
 
 
+def _format_cst(dt_value):
+    """Format UTC naive datetime to CST ISO string"""
+    if dt_value is None:
+        return None
+    utc_dt = dt_value.replace(tzinfo=timezone.utc)
+    cst_dt = utc_dt.astimezone(CST_TZ)
+    return cst_dt.isoformat()
+
 @router.get("/recent-audit")
 async def get_recent_audit(
     admin_user=Depends(get_current_admin),
@@ -93,7 +110,16 @@ async def get_recent_audit(
             "target_type": log.target_type,
             "target_id": log.target_id,
             "detail": log.detail,
-            "created_at": log.created_at.isoformat() if log.created_at else None,
+            "created_at": _format_cst(log.created_at),
         }
         for log in logs
     ]
+
+
+def _format_cst(dt_value):
+    """Format UTC naive datetime to CST ISO string"""
+    if dt_value is None:
+        return None
+    utc_dt = dt_value.replace(tzinfo=timezone.utc)
+    cst_dt = utc_dt.astimezone(CST_TZ)
+    return cst_dt.isoformat()