feat: add superadmin wallet view

backend/docs/swagger.yaml

@@ -1280,6 +1280,51 @@ definitions:
         description: VerifiedAt 实名认证时间（RFC3339）。
         type: string
     type: object
+  dto.SuperWalletResponse:
+    properties:
+      balance:
+        description: Balance 账户可用余额（分）。
+        type: integer
+      balance_frozen:
+        description: BalanceFrozen 账户冻结余额（分）。
+        type: integer
+      transactions:
+        description: Transactions 最近交易记录。
+        items:
+          $ref: '#/definitions/dto.SuperWalletTransaction'
+        type: array
+    type: object
+  dto.SuperWalletTransaction:
+    properties:
+      amount:
+        description: Amount 交易金额（分）。
+        type: integer
+      date:
+        description: Date 交易时间（RFC3339）。
+        type: string
+      id:
+        description: ID 订单ID。
+        type: integer
+      order_type:
+        allOf:
+        - $ref: '#/definitions/consts.OrderType'
+        description: OrderType 订单类型。
+      tenant_code:
+        description: TenantCode 租户编码。
+        type: string
+      tenant_id:
+        description: TenantID 交易所属租户ID（充值为0）。
+        type: integer
+      tenant_name:
+        description: TenantName 租户名称。
+        type: string
+      title:
+        description: Title 交易标题。
+        type: string
+      type:
+        description: Type 交易流向（income/expense）。
+        type: string
+    type: object
   dto.SuperWithdrawalRejectForm:
     properties:
       reason:
@@ -2815,6 +2860,28 @@ paths:
       summary: List user tenants
       tags:
       - User
+  /super/v1/users/{id}/wallet:
+    get:
+      consumes:
+      - application/json
+      description: Get user wallet balance and transactions
+      parameters:
+      - description: User ID
+        format: int64
+        in: path
+        name: id
+        required: true
+        type: integer
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/dto.SuperWalletResponse'
+      summary: Get user wallet
+      tags:
+      - User
   /super/v1/users/statistics:
     get:
       consumes: