feat: add superadmin assets and notifications

backend/docs/swagger.yaml

@@ -38,6 +38,50 @@ definitions:
     - GenderMale
     - GenderFemale
     - GenderSecret
+  consts.MediaAssetStatus:
+    enum:
+    - uploaded
+    - processing
+    - ready
+    - failed
+    - deleted
+    type: string
+    x-enum-varnames:
+    - MediaAssetStatusUploaded
+    - MediaAssetStatusProcessing
+    - MediaAssetStatusReady
+    - MediaAssetStatusFailed
+    - MediaAssetStatusDeleted
+  consts.MediaAssetType:
+    enum:
+    - video
+    - audio
+    - image
+    type: string
+    x-enum-varnames:
+    - MediaAssetTypeVideo
+    - MediaAssetTypeAudio
+    - MediaAssetTypeImage
+  consts.MediaAssetVariant:
+    enum:
+    - main
+    - preview
+    type: string
+    x-enum-varnames:
+    - MediaAssetVariantMain
+    - MediaAssetVariantPreview
+  consts.NotificationType:
+    enum:
+    - system
+    - order
+    - audit
+    - interaction
+    type: string
+    x-enum-varnames:
+    - NotificationTypeSystem
+    - NotificationTypeOrder
+    - NotificationTypeAudit
+    - NotificationTypeInteraction
   consts.OrderStatus:
     enum:
     - created
@@ -1013,6 +1057,99 @@ definitions:
         description: Likes 累计点赞数。
         type: integer
     type: object
+  dto.SuperAssetItem:
+    properties:
+      bucket:
+        description: Bucket 存储桶名称。
+        type: string
+      created_at:
+        description: CreatedAt 创建时间（RFC3339）。
+        type: string
+      filename:
+        description: Filename 原始文件名。
+        type: string
+      hash:
+        description: Hash 文件哈希（MD5）。
+        type: string
+      id:
+        description: ID 资产ID。
+        type: integer
+      object_key:
+        description: ObjectKey 对象Key。
+        type: string
+      provider:
+        description: Provider 存储提供方。
+        type: string
+      size:
+        description: Size 文件大小（字节）。
+        type: integer
+      source_asset_id:
+        description: SourceAssetID 源资产ID（用于变体关联）。
+        type: integer
+      status:
+        allOf:
+        - $ref: '#/definitions/consts.MediaAssetStatus'
+        description: Status 处理状态。
+      tenant_code:
+        description: TenantCode 租户编码。
+        type: string
+      tenant_id:
+        description: TenantID 租户ID。
+        type: integer
+      tenant_name:
+        description: TenantName 租户名称。
+        type: string
+      type:
+        allOf:
+        - $ref: '#/definitions/consts.MediaAssetType'
+        description: Type 媒体类型。
+      updated_at:
+        description: UpdatedAt 更新时间（RFC3339）。
+        type: string
+      url:
+        description: URL 访问URL（若可用）。
+        type: string
+      used_count:
+        description: UsedCount 被内容引用次数。
+        type: integer
+      user_id:
+        description: UserID 上传用户ID。
+        type: integer
+      username:
+        description: Username 上传用户名/昵称。
+        type: string
+      variant:
+        allOf:
+        - $ref: '#/definitions/consts.MediaAssetVariant'
+        description: Variant 媒体变体（main/preview/cover 等）。
+    type: object
+  dto.SuperAssetUsageItem:
+    properties:
+      count:
+        description: Count 该类型资产数量。
+        type: integer
+      total_size:
+        description: TotalSize 该类型资产大小总和（字节）。
+        type: integer
+      type:
+        allOf:
+        - $ref: '#/definitions/consts.MediaAssetType'
+        description: Type 媒体类型。
+    type: object
+  dto.SuperAssetUsageResponse:
+    properties:
+      by_type:
+        description: ByType 按媒体类型汇总的用量统计。
+        items:
+          $ref: '#/definitions/dto.SuperAssetUsageItem'
+        type: array
+      total_count:
+        description: TotalCount 资产总量。
+        type: integer
+      total_size:
+        description: TotalSize 资产总大小（字节）。
+        type: integer
+    type: object
   dto.SuperContentBatchReviewForm:
     properties:
       action:
@@ -1214,6 +1351,123 @@ definitions:
     required:
     - action
     type: object
+  dto.SuperNotificationBroadcastForm:
+    properties:
+      content:
+        description: Content 通知内容。
+        type: string
+      tenant_id:
+        description: TenantID 租户ID（选填，用于指定租户成员）。
+        type: integer
+      title:
+        description: Title 通知标题。
+        type: string
+      type:
+        allOf:
+        - $ref: '#/definitions/consts.NotificationType'
+        description: Type 通知类型（system/order/audit/interaction）。
+      user_ids:
+        description: UserIDs 指定接收用户ID列表（优先级高于 TenantID）。
+        items:
+          type: integer
+        type: array
+    type: object
+  dto.SuperNotificationItem:
+    properties:
+      content:
+        description: Content 通知内容。
+        type: string
+      created_at:
+        description: CreatedAt 创建时间（RFC3339）。
+        type: string
+      id:
+        description: ID 通知ID。
+        type: integer
+      is_read:
+        description: IsRead 是否已读。
+        type: boolean
+      tenant_code:
+        description: TenantCode 租户编码。
+        type: string
+      tenant_id:
+        description: TenantID 租户ID。
+        type: integer
+      tenant_name:
+        description: TenantName 租户名称。
+        type: string
+      title:
+        description: Title 通知标题。
+        type: string
+      type:
+        allOf:
+        - $ref: '#/definitions/consts.NotificationType'
+        description: Type 通知类型。
+      user_id:
+        description: UserID 用户ID。
+        type: integer
+      username:
+        description: Username 用户名/昵称。
+        type: string
+    type: object
+  dto.SuperNotificationTemplateCreateForm:
+    properties:
+      content:
+        description: Content 通知内容。
+        type: string
+      is_active:
+        description: IsActive 是否启用（不传默认启用）。
+        type: boolean
+      name:
+        description: Name 模板名称（用于识别用途）。
+        type: string
+      tenant_id:
+        description: TenantID 租户ID（不传代表全平台模板）。
+        type: integer
+      title:
+        description: Title 通知标题。
+        type: string
+      type:
+        allOf:
+        - $ref: '#/definitions/consts.NotificationType'
+        description: Type 通知类型（system/order/audit/interaction）。
+    type: object
+  dto.SuperNotificationTemplateItem:
+    properties:
+      content:
+        description: Content 模板内容。
+        type: string
+      created_at:
+        description: CreatedAt 创建时间（RFC3339）。
+        type: string
+      id:
+        description: ID 模板ID。
+        type: integer
+      is_active:
+        description: IsActive 是否启用。
+        type: boolean
+      name:
+        description: Name 模板名称。
+        type: string
+      tenant_code:
+        description: TenantCode 租户编码。
+        type: string
+      tenant_id:
+        description: TenantID 租户ID。
+        type: integer
+      tenant_name:
+        description: TenantName 租户名称。
+        type: string
+      title:
+        description: Title 模板标题。
+        type: string
+      type:
+        allOf:
+        - $ref: '#/definitions/consts.NotificationType'
+        description: Type 通知类型。
+      updated_at:
+        description: UpdatedAt 更新时间（RFC3339）。
+        type: string
+    type: object
   dto.SuperOrderDetail:
     properties:
       buyer:
@@ -2402,6 +2656,78 @@ info:
   title: ApiDoc
   version: "1.0"
 paths:
+  /super/v1/assets:
+    get:
+      consumes:
+      - application/json
+      description: List assets across tenants
+      parameters:
+      - description: Page number
+        in: query
+        name: page
+        type: integer
+      - description: Page size
+        in: query
+        name: limit
+        type: integer
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            allOf:
+            - $ref: '#/definitions/requests.Pager'
+            - properties:
+                items:
+                  items:
+                    $ref: '#/definitions/dto.SuperAssetItem'
+                  type: array
+              type: object
+      summary: List assets
+      tags:
+      - Asset
+  /super/v1/assets/{id}:
+    delete:
+      consumes:
+      - application/json
+      description: Delete asset
+      parameters:
+      - description: Asset ID
+        format: int64
+        in: path
+        name: id
+        required: true
+        type: integer
+      - description: Force delete
+        in: query
+        name: force
+        type: boolean
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: Deleted
+          schema:
+            type: string
+      summary: Delete asset
+      tags:
+      - Asset
+  /super/v1/assets/usage:
+    get:
+      consumes:
+      - application/json
+      description: Asset usage statistics
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/dto.SuperAssetUsageResponse'
+      summary: Asset usage
+      tags:
+      - Asset
   /super/v1/auth/login:
     post:
       consumes:
@@ -2715,6 +3041,102 @@ paths:
       summary: List creators
       tags:
       - Creator
+  /super/v1/notifications:
+    get:
+      consumes:
+      - application/json
+      description: List notifications across tenants
+      parameters:
+      - description: Page number
+        in: query
+        name: page
+        type: integer
+      - description: Page size
+        in: query
+        name: limit
+        type: integer
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            allOf:
+            - $ref: '#/definitions/requests.Pager'
+            - properties:
+                items:
+                  items:
+                    $ref: '#/definitions/dto.SuperNotificationItem'
+                  type: array
+              type: object
+      summary: List notifications
+      tags:
+      - Notification
+  /super/v1/notifications/broadcast:
+    post:
+      consumes:
+      - application/json
+      description: Broadcast notification to users or tenant members
+      parameters:
+      - description: Broadcast form
+        in: body
+        name: form
+        required: true
+        schema:
+          $ref: '#/definitions/dto.SuperNotificationBroadcastForm'
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: Sent
+          schema:
+            type: string
+      summary: Broadcast notification
+      tags:
+      - Notification
+  /super/v1/notifications/templates:
+    get:
+      consumes:
+      - application/json
+      description: List notification templates
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            allOf:
+            - $ref: '#/definitions/requests.Pager'
+            - properties:
+                items:
+                  items:
+                    $ref: '#/definitions/dto.SuperNotificationTemplateItem'
+                  type: array
+              type: object
+      summary: List notification templates
+      tags:
+      - Notification
+    post:
+      consumes:
+      - application/json
+      description: Create notification template
+      parameters:
+      - description: Template form
+        in: body
+        name: form
+        required: true
+        schema:
+          $ref: '#/definitions/dto.SuperNotificationTemplateCreateForm'
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/dto.SuperNotificationTemplateItem'
+      summary: Create notification template
+      tags:
+      - Notification
   /super/v1/orders:
     get:
       consumes: