[F7] 规则链列表/编辑页（DAG 画布整合，决策 5 双入口）

整合 F1 DagCanvas + F2 DagNodePanel + F3 DagPropertyPanel + F8 dag-converter
为完整的规则链 v2 编辑体验。

新增:
- apps/web-antd/src/views/iot/rule/chain/api/rule-chain.ts
  - CRUD + enable/disable/deploy/debug/copy API 封装
- apps/web-antd/src/views/iot/rule/chain/stores/rule-chain.ts
  - Pinia store: meta + nodes + edges + dirty guard + save/deploy 区分新建/更新
- apps/web-antd/src/views/iot/rule/chain/list.vue
  - 4 维筛选（name/subsystem/type/status）+ 分页 20/50/100
  - 启用/禁用乐观 UI + 调试切换 Modal 确认（评审 B8）
  - WARNING 状态红 Badge + Tooltip 物模型变更原因（评审 E4）
  - 双入口 Banner Alert 链到 v1 scene 页（决策 5）
  - hasAccessByCodes iot:rule:{update,delete} 权限
- apps/web-antd/src/views/iot/rule/chain/edit.vue
  - 三栏布局：DagNodePanel(220) + DagCanvas + DagPropertyPanel(320)
  - drop 处理: handleDragOver preventDefault / screenToFlowCoordinate /
    newTempId 新节点临时 ID
  - nodeClick → selectedNodeStore.setCurrent; paneClick → clear
  - onBeforeRouteLeave dirty 拦截 + Modal 确认
  - readonly 模式: status=ENABLED 默认只读，可"解锁编辑"
  - 发布: save(若 dirty) → deploy API（Modal 前置确认）
  - 创建后 router.replace 含真实 ID
- apps/web-antd/src/views/iot/rule/chain/__tests__/rule-chain-store.spec.ts (10 用例)

修改:
- apps/web-antd/src/router/routes/modules/iot.ts
  追加 /iot/rule/chain (顶级) + /iot/rule/chain/edit/:id? (hideInMenu detail)
- locales/langs/{zh-CN,en-US}/page.json 补 iot.ruleChain.* 约 80 键

Known Pitfalls 落地:
- drop 兼容: handleDragOver 调 e.preventDefault + dropEffect='copy'（Firefox）
- 临时 ID: newTempId 生成 new_<uuid>，isTempId 识别 INSERT（F8 约定）
- dirty guard: onBeforeRouteLeave 拦截离开
- readonly: status=ENABLED 已发布默认只读，可解锁重新编辑
- 画布双击 nodeDblclick 已透传（DagPropertyPanel 可选聚焦）

决策 5 双入口落实:
- 现有 /iot/rule/scene/* (v1 表单) 完全保留
- 新增 /iot/rule/chain/* (v2 DAG)
- list.vue 顶部 Alert 给用户两入口引导

质检:
- pnpm test:unit src/views/iot/rule/chain → 58/58 通过（累计 F1-F8 测试）
- pnpm lint F7 files → 0 errors
- pnpm check:type chain → 0 errors

后端 B2 API 契约:
- GET /iot/rule-chain/page / get?id=
- POST /iot/rule-chain/create  PUT update  DELETE delete?id=
- PUT enable / disable / deploy / debug
- POST copy?id=
- GET /iot/subsystem/simple-list (F9 提供，F7 筛选器复用)

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

@@ -304,6 +304,88 @@
         "history": "History",
         "noHistory": "No history records"
       }
+    },
+    "ruleChain": {
+      "list": {
+        "title": "Rule Chain List"
+      },
+      "edit": {
+        "title": "Edit Rule Chain",
+        "namePlaceholder": "Enter rule chain name",
+        "nameRequired": "Rule chain name is required",
+        "loadFailed": "Failed to load rule chain, please retry",
+        "saveFailed": "Save failed, please retry",
+        "unsavedTitle": "Unsaved Changes",
+        "unsavedContent": "Leaving this page will discard unsaved changes. Continue?",
+        "unsavedLeave": "Leave",
+        "unsavedBadge": "Unsaved",
+        "unlockTip": "This rule chain is enabled. Click to unlock for editing.",
+        "dropHint": "Drag nodes to canvas to start building"
+      },
+      "v1Banner": {
+        "message": "Scene Rules (v1) Migrated",
+        "description": "v2 Rule Chain DAG is the new orchestration entry. v1 Scene Rules page remains available during the gradual rollout.",
+        "link": "Go to v1 Scene Rules"
+      },
+      "field": {
+        "name": "Name",
+        "type": "Type",
+        "subsystem": "Subsystem",
+        "bindScope": "Bind Scope",
+        "product": "Product",
+        "device": "Device",
+        "priority": "Priority",
+        "status": "Status",
+        "debugMode": "Debug Mode",
+        "version": "Version",
+        "updateTime": "Updated At",
+        "actions": "Actions"
+      },
+      "filter": {
+        "namePlaceholder": "Search name",
+        "subsystemPlaceholder": "All Subsystems",
+        "typePlaceholder": "All Types",
+        "statusPlaceholder": "All Status"
+      },
+      "status": {
+        "enabled": "Enabled",
+        "disabled": "Disabled",
+        "warning": "Warning",
+        "warningHint": "Model changes caused some rules to fail. Please check the rule chain configuration."
+      },
+      "type": {
+        "scene": "Scene Linkage",
+        "data": "Data Forwarding",
+        "custom": "Custom"
+      },
+      "debug": {
+        "confirmTitle": "Enable Debug Mode",
+        "confirmContent": "Debug mode records input/output for each node and may produce large logs affecting performance. Confirm?",
+        "toggleSuccess": "Debug mode toggled",
+        "toggleFailed": "Toggle failed, please retry"
+      },
+      "action": {
+        "create": "New Rule Chain",
+        "enable": "Enable",
+        "disable": "Disable",
+        "enableSuccess": "Enabled successfully",
+        "disableSuccess": "Disabled successfully",
+        "statusChangeFailed": "Operation failed, please retry",
+        "deleteConfirm": "Delete this rule chain? This action cannot be undone.",
+        "deleteSuccess": "Deleted successfully",
+        "deleteFailed": "Delete failed, please retry",
+        "copy": "Copy",
+        "copySuccess": "Copied successfully",
+        "copyFailed": "Copy failed, please retry",
+        "deploy": "Deploy",
+        "deployConfirmTitle": "Confirm Deploy",
+        "deployConfirmContent": "After deploying, the rule chain will take effect immediately at runtime. Please confirm the configuration is correct.",
+        "deploySuccess": "Deployed successfully",
+        "deployFailed": "Deploy failed, please retry",
+        "saveSuccess": "Saved successfully",
+        "unlock": "Unlock for Editing",
+        "back": "Back to List"
+      }
     }
   }
 }