feat：- add sql

电子日历/app-im.sql

--- 用户设备IM
+-- 用户设备IM
@@ -41,15 +41,15 @@ create table t_im_push_app
 )
     comment 'APP IM 推送表' collate = utf8mb4_general_ci;
 
-create index idx_device_id
-    on t_im_push (message_type);
+create index idx_message_type
+    on t_im_push_app (message_type);
 
 create index idx_device_id_message_type
-    on t_im_push (device_id, message_type);
+    on t_im_push_app (device_id, message_type);
 
 create index idx_push_time
-    on t_im_push (push_time);
+    on t_im_push_app (push_time);
 
 create index idx_update_time
-    on t_im_push (update_time);
+    on t_im_push_app (update_time);