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/MyInstances.vue

@@ -7,6 +7,7 @@ import MyConfirm from "@/components/MyConfirm";
 import TablePageAlovaNew from "@/components/TablePageAlovaNew.vue";
 import { OperatorEnum } from "@/types";
 import { flowApi, INSTANCE_STATUS, INSTANCE_STATUS_COLOR } from "@/api/module/flow";
+import { actionColumn } from "@/utils/tableActions";
 import Utils from "@/utils";
 
 const router = useRouter();
@@ -23,14 +24,14 @@ const columns = [
     { title: "当前节点", key: "currentNodes", width: 150 },
     { title: "提交时间", width: 170, render: (h: any, p: any) => h("span", (p.row.submitTime || "").replace("T", " ")) },
     { title: "办结时间", width: 170, render: (h: any, p: any) => h("span", (p.row.finishTime || "").replace("T", " ") || "-") },
-    { title: "操作", width: 180, align: "center", fixed: "right", render: (h: any, p: any) => {
-        const btns = [Utils.operatingHandle(h, "详情", "icon-browse", () => router.push(`/instance/${p.row.instanceId}?pid=101`))];
-        if (p.row.status === 10) {
-            btns.push(Utils.operatingHandle(h, "撤回", "icon-yaohao", () => onWithdraw(p.row)));
-            btns.push(Utils.operatingHandle(h, "催办", "icon-fasong", () => onUrge(p.row)));
-        }
-        return btns;
-    } },
+    actionColumn(
+        [
+            { key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => router.push(`/instance/${r.instanceId}?pid=101`) },
+            { key: "withdraw", label: "撤回", icon: "icon-yaohao", on: (r: any) => onWithdraw(r), when: (r: any) => r.status === 10, danger: true },
+            { key: "urge", label: "催办", icon: "icon-fasong", on: (r: any) => onUrge(r), when: (r: any) => r.status === 10 },
+        ],
+        { mode: "text", width: 180, fixed: "right" },
+    ),
 ];
 
 // dataApi 返回 Method（alova usePagination 负责发送与解包），不能调 .send()