refactor(theme): A 类主题通道接入+本地样式回收、操作列统一 actionColumn、顶栏三态头像

- P1 通道：view-ui-plus 锁 1.3.24（A 类 loader + vite /static dev 代理核验，五档/断源降级走查）
- P2 回收：删本地 layout.css/icons.css(+bak) 并清 main.ts import；骨架六类对齐 + 品牌色 var(--brand) 化；index CSS 779→393kB
- P3 操作列：新增 utils/tableActions.ts（同构 UserBase，7 函数+2 表，无 AUTO_MODE）；7 页迁 actionColumn text 形态；旧 operatingHandle/operatingTextHandle 薄封装保留、签名不变
- P4 外观：接入三态头像 avatar.ts+UserAvatar.vue（同步自 YschTheme），顶栏裸 img 替换；外观三键红线零写
- 失效注释订正（layout.vue/def-editor）

src/views/flow/admin/Instances.vue

@@ -7,6 +7,7 @@ import MyConfirm from "@/components/MyConfirm";
 import { OperatorEnum } from "@/types";
 import TablePageAlovaNew from "@/components/TablePageAlovaNew.vue";
 import { flowApi, INSTANCE_STATUS, INSTANCE_STATUS_COLOR } from "@/api/module/flow";
+import { actionColumn } from "@/utils/tableActions";
 import Utils from "@/utils";
 
 const router = useRouter();
@@ -22,14 +23,14 @@ const columns = [
         h("Tag", { color: INSTANCE_STATUS_COLOR[p.row.status] || "gray" }, () => INSTANCE_STATUS[p.row.status] || p.row.status) },
     { title: "提交人", key: "submitterName", width: 100 },
     { title: "提交时间", width: 160, render: (h: any, p: any) => h("span", (p.row.submitTime || "").replace("T", " ")) },
-    { title: "操作", width: 170, align: "center", fixed: "right", render: (h: any, p: any) => [
-        Utils.operatingHandle(h, "详情", "icon-browse", () => router.push(`/instance/${p.row.id}?pid=102`)),
-        h("span", { style: "display:inline-block;width:10px" }),
-        // 仅审批中的办件可能挂在条件分支节点（重跑入口对非挂起办件会得到业务错提示）
-        p.row.status === 10
-            ? Utils.operatingHandle(h, "重跑路由", "icon-play", () => onReroute(p.row))
-            : h("span"),
-    ] },
+    actionColumn(
+        [
+            { key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => router.push(`/instance/${r.id}?pid=102`) },
+            // 仅审批中的办件可能挂在条件分支节点（重跑入口对非挂起办件会得到业务错提示）
+            { key: "reroute", label: "重跑路由", icon: "icon-play", on: (r: any) => onReroute(r), when: (r: any) => r.status === 10 },
+        ],
+        { mode: "text", width: 170, fixed: "right" },
+    ),
 ];
 
 /** 重跑路由（2026-09-24 §4.4）：重新调判断服务，成功即按出口续走；仍失败回业务错（办件继续挂起） */