fix(ui): tab 改线型对齐 Notice；操作列 when→disabledWhen 置灰保位（用户验收反馈 R1）

- 工作台/回调管理两页 Tabs 去 type=card，改通道线型 .tabs-panel（对齐 Notice）
- 7 页 14 处按行隐藏动作改 disabledWhen 置灰保位（互斥钮恒一灰一活），
  规范 §5.2 新增按钮位置稳定性红线：按行变化一律 disabledWhen，when 仅限行无关全局模式

src/views/flow/admin/Defs.vue

@@ -43,14 +43,14 @@ const columns = [
     { title: "发布时间", width: 160, render: (h: any, p: any) => h("span", (p.row.publishTime || "").replace("T", " ") || "-") },
     actionColumn(
         [
-            { key: "edit", label: "编辑", icon: "icon-edit", on: (r: any) => onEdit(r), when: (r: any) => r.status === 0 },
-            { key: "publish", label: "发布", icon: "icon-fasong", on: (r: any) => onPublish(r), when: (r: any) => r.status === 0 },
-            { key: "newVersion", label: "升版本", icon: "icon-tianjia", on: (r: any) => onNewVersion(r), when: (r: any) => r.status === 1 },
+            { key: "edit", label: "编辑", icon: "icon-edit", on: (r: any) => onEdit(r), disabledWhen: (r: any) => r.status !== 0 },
+            { key: "publish", label: "发布", icon: "icon-fasong", on: (r: any) => onPublish(r), disabledWhen: (r: any) => r.status !== 0 },
+            { key: "newVersion", label: "升版本", icon: "icon-tianjia", on: (r: any) => onNewVersion(r), disabledWhen: (r: any) => r.status !== 1 },
             // 停用：破坏性动作（已发布→停用），danger 沉底并进「更多」
-            { key: "offline", label: "停用", icon: "icon-stop", on: (r: any) => onOffline(r), when: (r: any) => r.status === 1, danger: true },
+            { key: "offline", label: "停用", icon: "icon-stop", on: (r: any) => onOffline(r), disabledWhen: (r: any) => r.status !== 1, danger: true },
             // 与「停用」对称的专用启用通道（后端 /def/enable：仅停用版→已发布，重跑发布校验；
             // 草稿不走这里，草稿用「发布」）
-            { key: "enable", label: "启用", icon: "icon-play", on: (r: any) => onEnable(r), when: (r: any) => r.status === 2 },
+            { key: "enable", label: "启用", icon: "icon-play", on: (r: any) => onEnable(r), disabledWhen: (r: any) => r.status !== 2 },
             // 元数据原地编辑（2026-10-10 议题2）：改名称/归属应用不升版本（含已发布/停用）
             { key: "editMeta", label: "编辑信息", icon: "icon-bianji", on: (r: any) => onEditMeta(r) },
             { key: "diagram", label: "图示", icon: "icon-tupian", on: (r: any) => onDiagram(r) },