Force relogin after webui data changes

- Add a force_relogin flag to user_pref
- Return 404 for main.php requests when the user must reauthenticate
- Clear the relogin flag after successful client login
- Mark users for relogin after webui card import, accessory changes, and profile updates

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/handler/webui/upload.go

@@ -111,6 +111,11 @@ func upload(ctx *gin.Context) {
 		return
 	}
 
+	if err := usermodel.MarkUserForceRelogin(db.UserEng, ctx.GetInt("userid")); err != nil {
+		ctx.JSON(http.StatusOK, ErrMsg{Error: 1, Msg: "卡片添加成功，但登录状态刷新失败！"})
+		return
+	}
+
 	ctx.JSON(http.StatusOK, ErrMsg{Error: 0, Msg: "导入成功，请重新打开游戏！"})
 }