[F2] DAG 节点面板（左侧拖拽区）

- apps/web-antd/src/components/iot-dag/DagNodePanel.vue
  - 3 类分组 collapse + 搜索过滤 + 加载/错误/空态
- apps/web-antd/src/components/iot-dag/NodeTypeCard.vue
  - HTML5 dragstart 双 MIME：application/x-iot-dag-node + text/plain
  - payload: { type: providerType, category: dagNodeType }
- apps/web-antd/src/components/iot-dag/hooks/useNodeCatalog.ts
  - Mock 13 节点类型（5 trigger / 3 condition / 5 action）
  - fetcher 可注入、permissionFilter 预留
  - TODO(F3/F7): 替换为 @vben/request /iot/rule/provider/metadata
- apps/web-antd/src/components/iot-dag/__tests__/useNodeCatalog.spec.ts 17 用例
- apps/web-antd/src/components/iot-dag/index.ts barrel 增加 DagNodePanel/NodeTypeCard
- i18n: iot.dag.panel.* + iot.dag.node.<type>.{name,desc} zh-CN/en-US 同步
- Known Pitfalls 落地: ⚠️ Firefox dataTransfer 双 MIME / 权限过滤预留 / icon Lucide 名

note: Acceptance #3 drop 由 F3/F7 DagCanvasContainer 实现，F2 只负责发送方。
      图标通过 data-icon attribute 传递，F3/F7 集成时接入 lucide-vue-next 渲染。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web-antd/src/locales/langs/en-US/page.json

@@ -53,6 +53,72 @@
       "canvas": {
         "readonly": "Read-only mode",
         "empty": "Drag nodes to canvas to start"
+      },
+      "panel": {
+        "title": "Node Types",
+        "searchPlaceholder": "Search nodes...",
+        "loading": "Loading...",
+        "loadError": "Load failed, please refresh",
+        "noMatch": "No matching nodes found",
+        "category": {
+          "trigger": "Trigger",
+          "condition": "Condition",
+          "action": "Action"
+        }
+      },
+      "node": {
+        "device_state": {
+          "name": "Device State",
+          "desc": "Triggered when device goes online/offline"
+        },
+        "device_property": {
+          "name": "Device Property Report",
+          "desc": "Triggered when device reports property data"
+        },
+        "device_event": {
+          "name": "Device Event",
+          "desc": "Triggered when device reports an event"
+        },
+        "device_service": {
+          "name": "Device Service Call",
+          "desc": "Triggered when device service is invoked"
+        },
+        "timer": {
+          "name": "Timer",
+          "desc": "Triggered by Cron expression on schedule"
+        },
+        "expression": {
+          "name": "Expression",
+          "desc": "Aviator expression evaluation condition"
+        },
+        "time_range": {
+          "name": "Time Range",
+          "desc": "Check if current time is within a specified range"
+        },
+        "condition_device_state": {
+          "name": "Device State Check",
+          "desc": "Check current device online status"
+        },
+        "property_set": {
+          "name": "Set Property",
+          "desc": "Send property set command to device"
+        },
+        "service_invoke": {
+          "name": "Invoke Service",
+          "desc": "Invoke device service"
+        },
+        "alarm_trigger": {
+          "name": "Trigger Alarm",
+          "desc": "Trigger a device alarm"
+        },
+        "alarm_clear": {
+          "name": "Clear Alarm",
+          "desc": "Clear a device alarm"
+        },
+        "notify": {
+          "name": "Send Notification",
+          "desc": "Send notification (SMS/Email/Webhook)"
+        }
       }
     }
   }

apps/web-antd/src/locales/langs/zh-CN/page.json

@@ -53,6 +53,72 @@
       "canvas": {
         "readonly": "只读模式",
         "empty": "拖拽节点到画布开始编排"
+      },
+      "panel": {
+        "title": "节点类型",
+        "searchPlaceholder": "搜索节点...",
+        "loading": "加载中...",
+        "loadError": "加载失败，请刷新重试",
+        "noMatch": "未找到匹配节点",
+        "category": {
+          "trigger": "触发器",
+          "condition": "条件",
+          "action": "动作"
+        }
+      },
+      "node": {
+        "device_state": {
+          "name": "设备状态",
+          "desc": "设备上线/下线时触发"
+        },
+        "device_property": {
+          "name": "设备属性上报",
+          "desc": "设备属性数据上报时触发"
+        },
+        "device_event": {
+          "name": "设备事件",
+          "desc": "设备上报事件时触发"
+        },
+        "device_service": {
+          "name": "设备服务调用",
+          "desc": "设备服务被调用时触发"
+        },
+        "timer": {
+          "name": "定时触发",
+          "desc": "按 Cron 表达式定时触发"
+        },
+        "expression": {
+          "name": "表达式判断",
+          "desc": "Aviator 表达式计算条件"
+        },
+        "time_range": {
+          "name": "时间段判断",
+          "desc": "判断当前时间是否在指定范围"
+        },
+        "condition_device_state": {
+          "name": "设备状态判断",
+          "desc": "判断设备当前在线状态"
+        },
+        "property_set": {
+          "name": "下发属性",
+          "desc": "向设备下发属性设置指令"
+        },
+        "service_invoke": {
+          "name": "调用服务",
+          "desc": "调用设备服务"
+        },
+        "alarm_trigger": {
+          "name": "触发告警",
+          "desc": "触发设备告警"
+        },
+        "alarm_clear": {
+          "name": "清除告警",
+          "desc": "清除设备告警"
+        },
+        "notify": {
+          "name": "发送通知",
+          "desc": "发送消息通知（短信/邮件/webhook）"
+        }
       }
     }
   }