GET /admin/notifications/platform-stats
获取平台所有租户的通知发送、阅读等聚合统计数据 参考：CAN-SPAM Act (15 U.S.C. §7701) — Commercial Email Compliance。
通知服务 `bearerAuth` application/json
Referenced Schemas
dto.NotificationStatsDetailResponse
dto.NotificationStatsResponse
通知发送与阅读统计（notification 层不追踪投递状态，仅追踪已读/未读）
| Field | Type | Required | Example | Constraints | Description |
|---|
by_type |
object |
No |
|
extra keys: `integer` |
按类型 |
read_rate |
number |
No |
0.45 |
|
阅读率 |
total_read |
integer |
No |
450 |
|
总阅读 |
total_sent |
integer |
No |
1000 |
|
总发送 |
gitee_com_linmes_authms_base_dto.SimpleResponse
| Field | Type | Required | Example | Constraints | Description |
|---|
code |
integer |
No |
|
|
|
message |
string |
No |
|
|
|
timestamp |
string |
No |
|
|
|