优化表结构，重构模型，重新实现基于白银网关的提取节点流程

web/auth/session.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	g "platform/web/globals"
-	"platform/web/globals/orm"
 	m "platform/web/models"
 	q "platform/web/queries"
 	"time"
@@ -17,7 +16,7 @@ func FindSession(accessToken string, now time.Time) (*m.Session, error) {
 		Preload(field.Associations).
 		Where(
 			q.Session.AccessToken.Eq(accessToken),
-			q.Session.AccessTokenExpires.Gt(orm.LocalDateTime(now)),
+			q.Session.AccessTokenExpires.Gt(now),
 		).First()
 }
 
@@ -26,7 +25,7 @@ func FindSessionByRefresh(refreshToken string, now time.Time) (*m.Session, error
 		Preload(field.Associations).
 		Where(
 			q.Session.RefreshToken.Eq(refreshToken),
-			q.Session.RefreshTokenExpires.Gt(orm.LocalDateTime(now)),
+			q.Session.RefreshTokenExpires.Gt(now),
 		).First()
 }