feat: 添加用户统计功能，包括统计接口和相关数据结构

backend/docs/swagger.json

@@ -87,6 +87,11 @@
                         "type": "integer",
                         "name": "page",
                         "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "name": "status",
+                        "in": "query"
                     }
                 ],
                 "responses": {
@@ -237,6 +242,11 @@
                         "name": "page",
                         "in": "query"
                     },
+                    {
+                        "type": "string",
+                        "name": "status",
+                        "in": "query"
+                    },
                     {
                         "type": "integer",
                         "name": "tenantID",
@@ -270,6 +280,31 @@
                 }
             }
         },
+        "/super/v1/users/statistics": {
+            "get": {
+                "consumes": [
+                    "application/json"
+                ],
+                "produces": [
+                    "application/json"
+                ],
+                "tags": [
+                    "Super"
+                ],
+                "summary": "用户统计信息",
+                "responses": {
+                    "200": {
+                        "description": "OK",
+                        "schema": {
+                            "type": "array",
+                            "items": {
+                                "$ref": "#/definitions/dto.UserStatistics"
+                            }
+                        }
+                    }
+                }
+            }
+        },
         "/super/v1/users/statuses": {
             "get": {
                 "consumes": [
@@ -530,6 +565,20 @@
                 }
             }
         },
+        "dto.UserStatistics": {
+            "type": "object",
+            "properties": {
+                "count": {
+                    "type": "integer"
+                },
+                "status": {
+                    "$ref": "#/definitions/consts.UserStatus"
+                },
+                "status_description": {
+                    "type": "string"
+                }
+            }
+        },
         "dto.UserStatusUpdateForm": {
             "type": "object",
             "required": [