feat(access-logs): 重构访问日志为概览与明细双 Tab

新增访问日志概览 API 与前端页面：汇总请求量/访问量/带宽趋势与 Top 排行，
明细列表保留检索；排行榜改为紧凑列表样式。

docs/swagger.yaml

@@ -1937,6 +1937,60 @@ definitions:
       total_record:
         type: integer
     type: object
+  observability.AccessLogOverview:
+    properties:
+      generated_at:
+        type: string
+      hours:
+        type: integer
+      summary:
+        $ref: '#/definitions/observability.AccessLogOverviewSummary'
+      top_hosts:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
+      top_ips:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
+      top_paths:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
+      trends:
+        $ref: '#/definitions/observability.AccessLogOverviewTrends'
+    type: object
+  observability.AccessLogOverviewMetricPoint:
+    properties:
+      bucket_started_at:
+        type: string
+      value:
+        type: integer
+    type: object
+  observability.AccessLogOverviewSummary:
+    properties:
+      bandwidth_served:
+        type: integer
+      total_requests:
+        type: integer
+      total_visits:
+        type: integer
+    type: object
+  observability.AccessLogOverviewTrends:
+    properties:
+      bandwidth:
+        items:
+          $ref: '#/definitions/observability.AccessLogOverviewMetricPoint'
+        type: array
+      requests:
+        items:
+          $ref: '#/definitions/observability.AccessLogOverviewMetricPoint'
+        type: array
+      visits:
+        items:
+          $ref: '#/definitions/observability.AccessLogOverviewMetricPoint'
+        type: array
+    type: object
   observability.AccessLogView:
     properties:
       host:
@@ -7160,6 +7214,55 @@ paths:
       summary: 获取访问日志 IP 趋势
       tags:
       - openflare-observability
+  /api/v1/d/access-logs/overview:
+    get:
+      description: 返回访问日志汇总指标、趋势与 Top 排行，需要管理员权限
+      parameters:
+      - description: 节点 ID
+        in: query
+        name: node_id
+        type: string
+      - description: 请求 Host
+        in: query
+        name: host
+        type: string
+      - description: 统计时间范围（小时）
+        in: query
+        name: hours
+        type: integer
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: 访问日志概览
+          schema:
+            allOf:
+            - $ref: '#/definitions/response.Any'
+            - properties:
+                data:
+                  $ref: '#/definitions/observability.AccessLogOverview'
+              type: object
+        "400":
+          description: 参数错误
+          schema:
+            $ref: '#/definitions/response.Any'
+        "401":
+          description: 未登录
+          schema:
+            $ref: '#/definitions/response.Any'
+        "404":
+          description: 无权限或不存在
+          schema:
+            $ref: '#/definitions/response.Any'
+        "500":
+          description: 内部错误
+          schema:
+            $ref: '#/definitions/response.Any'
+      security:
+      - SessionCookie: []
+      summary: 获取访问日志概览
+      tags:
+      - openflare-observability
   /api/v1/d/acme-accounts/default:
     get:
       description: 返回系统默认 ACME 账号配置，需要管理员权限