Add draggable swimlane kanban template

app/page.tsx

@@ -2,12 +2,17 @@ import Link from "next/link";
 import AdminApp from "./AdminApp";
 import styles from "./page.module.css";
 
-// AdminApp owns the localStorage-backed template interactions.
+// Feature routes use localStorage-backed JSON demo data.
 export default function Home() {
   return (
     <>
       <AdminApp />
       <nav className={styles.launcherStack} aria-label="模板功能入口">
+        <Link className={`${styles.launcher} ${styles.kanban}`} href="/kanban">
+          <span className={styles.launcherIcon}>▦</span>
+          <span><strong>泳道看板</strong><small>拖拽变更卡片状态</small></span>
+          <b>→</b>
+        </Link>
         <Link className={`${styles.launcher} ${styles.worklist}`} href="/worklist">
           <span className={styles.launcherIcon}>☷</span>
           <span><strong>工作列表</strong><small>多级树形表格</small></span>