feat(access-logs): 接入 User-Agent 与设备/浏览器/状态码分布

- Agent 访问日志上报 user_agent，OpenResty log_format 输出 http_user_agent
- of_node_access_logs 新增 user_agent 列并写入 ClickHouse
- 访问日志概览新增：设备类型饼图、状态码饼图、浏览器/OS/User-Agent 排行
- 日志明细列表增加 User-Agent 列
- 扩展 UA 解析工具（browser/os/device）并支持 CLI 识别

docs/changelog/index.md

@@ -24,6 +24,7 @@ sidebar: false
 ### 变更
 
 - 访问日志页面重构为「概览」与「日志明细」两个标签页：概览展示请求量、访问量、带宽趋势与 Top Paths/Hosts/IPs，明细列表保留检索能力；已移除时间折叠与 IP 汇总视图。
+- 边缘访问日志现支持上报并存储 User-Agent；概览新增设备类型饼图，以及浏览器、操作系统、User-Agent 排行。
 
 ## [v3.4.0] - 2026-07-18
 

docs/docs.go

@@ -14325,6 +14325,9 @@ const docTemplate = `{
                 },
                 "status_code": {
                     "type": "integer"
+                },
+                "user_agent": {
+                    "type": "string"
                 }
             }
         },
@@ -16232,15 +16235,33 @@ const docTemplate = `{
         "observability.AccessLogOverview": {
             "type": "object",
             "properties": {
+                "device_types": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "generated_at": {
                     "type": "string"
                 },
                 "hours": {
                     "type": "integer"
                 },
+                "status_codes": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "summary": {
                     "$ref": "#/definitions/observability.AccessLogOverviewSummary"
                 },
+                "top_browsers": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "top_hosts": {
                     "type": "array",
                     "items": {
@@ -16253,12 +16274,24 @@ const docTemplate = `{
                         "$ref": "#/definitions/observability.DistributionItem"
                     }
                 },
+                "top_operating_systems": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "top_paths": {
                     "type": "array",
                     "items": {
                         "$ref": "#/definitions/observability.DistributionItem"
                     }
                 },
+                "top_user_agents": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "trends": {
                     "$ref": "#/definitions/observability.AccessLogOverviewTrends"
                 }
@@ -16341,6 +16374,9 @@ const docTemplate = `{
                 },
                 "status_code": {
                     "type": "integer"
+                },
+                "user_agent": {
+                    "type": "string"
                 }
             }
         },

docs/swagger.json

@@ -14318,6 +14318,9 @@
                 },
                 "status_code": {
                     "type": "integer"
+                },
+                "user_agent": {
+                    "type": "string"
                 }
             }
         },
@@ -16225,15 +16228,33 @@
         "observability.AccessLogOverview": {
             "type": "object",
             "properties": {
+                "device_types": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "generated_at": {
                     "type": "string"
                 },
                 "hours": {
                     "type": "integer"
                 },
+                "status_codes": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "summary": {
                     "$ref": "#/definitions/observability.AccessLogOverviewSummary"
                 },
+                "top_browsers": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "top_hosts": {
                     "type": "array",
                     "items": {
@@ -16246,12 +16267,24 @@
                         "$ref": "#/definitions/observability.DistributionItem"
                     }
                 },
+                "top_operating_systems": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "top_paths": {
                     "type": "array",
                     "items": {
                         "$ref": "#/definitions/observability.DistributionItem"
                     }
                 },
+                "top_user_agents": {
+                    "type": "array",
+                    "items": {
+                        "$ref": "#/definitions/observability.DistributionItem"
+                    }
+                },
                 "trends": {
                     "$ref": "#/definitions/observability.AccessLogOverviewTrends"
                 }
@@ -16334,6 +16367,9 @@
                 },
                 "status_code": {
                     "type": "integer"
+                },
+                "user_agent": {
+                    "type": "string"
                 }
             }
         },

docs/swagger.yaml

@@ -673,6 +673,8 @@ definitions:
         type: integer
       status_code:
         type: integer
+      user_agent:
+        type: string
     type: object
   github_com_Rain-kl_Wavelet_pkg_protocol.NodeEdgeHealth:
     properties:
@@ -1939,12 +1941,24 @@ definitions:
     type: object
   observability.AccessLogOverview:
     properties:
+      device_types:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
       generated_at:
         type: string
       hours:
         type: integer
+      status_codes:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
       summary:
         $ref: '#/definitions/observability.AccessLogOverviewSummary'
+      top_browsers:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
       top_hosts:
         items:
           $ref: '#/definitions/observability.DistributionItem'
@@ -1953,10 +1967,18 @@ definitions:
         items:
           $ref: '#/definitions/observability.DistributionItem'
         type: array
+      top_operating_systems:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
       top_paths:
         items:
           $ref: '#/definitions/observability.DistributionItem'
         type: array
+      top_user_agents:
+        items:
+          $ref: '#/definitions/observability.DistributionItem'
+        type: array
       trends:
         $ref: '#/definitions/observability.AccessLogOverviewTrends'
     type: object
@@ -2011,6 +2033,8 @@ definitions:
         type: string
       status_code:
         type: integer
+      user_agent:
+        type: string
     type: object
   observability.CapacityTrendPoint:
     properties: