fix: 统一系统生成时间为北京时间(UTC+8)并优化审计日志表格列展示

inventory-backend/app/models/inbound/service.py

@@ -1,5 +1,5 @@
 # inventory-backend/app/models/inbound/service.py
-from app.extensions import db
+from app.extensions import db, beijing_time
 from datetime import datetime
 
 
@@ -35,8 +35,8 @@ class StockService(db.Model):
     status = db.Column(db.String(20), default='active')
 
     # 时间与系统字段
-    created_at = db.Column(db.DateTime, default=datetime.now, nullable=False)
-    updated_at = db.Column(db.DateTime, default=datetime.now, onupdate=datetime.now)
+    created_at = db.Column(db.DateTime, default=beijing_time, nullable=False)
+    updated_at = db.Column(db.DateTime, default=beijing_time, onupdate=beijing_time)
     is_deleted = db.Column(db.Boolean, default=False)
 
     # ==========================================================================