feat: add superadmin wallet view

backend/docs/docs.go

@@ -1260,6 +1260,39 @@ const docTemplate = `{
                 }
             }
         },
+        "/super/v1/users/{id}/wallet": {
+            "get": {
+                "description": "Get user wallet balance and transactions",
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "User"
+                ],
+                "summary": "Get user wallet",
+                "parameters": [
+                    {
+                        "type": "integer",
+                        "format": "int64",
+                        "description": "User ID",
+                        "name": "id",
+                        "in": "path",
+                        "required": true
+                    }
+                ],
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "$ref": "#/definitions/dto.SuperWalletResponse"
+                        }
+                    }
+                }
+            }
+        },
         "/super/v1/withdrawals": {
             "get": {
                 "description": "List withdrawal orders across tenants",
@@ -5954,6 +5987,71 @@ const docTemplate = `{
                 }
             }
         },
+        "dto.SuperWalletResponse": {
+            "type": "object",
+            "properties": {
+                "balance": {
+                    "description": "Balance 账户可用余额（分）。",
+                    "type": "integer"
+                },
+                "balance_frozen": {
+                    "description": "BalanceFrozen 账户冻结余额（分）。",
+                    "type": "integer"
+                },
+                "transactions": {
+                    "description": "Transactions 最近交易记录。",
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/dto.SuperWalletTransaction"
+                    }
+                }
+            }
+        },
+        "dto.SuperWalletTransaction": {
+            "type": "object",
+            "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": {
+                    "description": "OrderType 订单类型。",
+                    "allOf": [
+                        {
+                            "$ref": "#/definitions/consts.OrderType"
+                        }
+                    ]
+                },
+                "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"
+                }
+            }
+        },
         "dto.SuperWithdrawalRejectForm": {
             "type": "object",
             "required": [