feat: add portal home launcher, favorites UI, and WorkTab overflow eviction

Replace top-bar module navigation with a card home page, persist favorites via API, reopen favorite tabs on cold login, and enable portal multi-tabs with overflow-based eviction.

Co-authored-by: Cursor <cursoragent@cursor.com>

web-admin/src/api/menuFavorite.ts

@@ -0,0 +1,28 @@
+import request from '@/utils/http'
+
+export interface MenuFavoriteItem {
+  id: string
+  path: string
+  orderNum?: number
+  createTime?: string
+}
+
+export function fetchMenuFavorites() {
+  return request.get<MenuFavoriteItem[]>({
+    url: '/web/admin/menu-favorites'
+  })
+}
+
+export function fetchAddMenuFavorite(path: string) {
+  return request.post<MenuFavoriteItem>({
+    url: '/web/admin/menu-favorites',
+    data: { path }
+  })
+}
+
+export function fetchRemoveMenuFavorite(path: string) {
+  return request.delete<{ path: string }>({
+    url: '/web/admin/menu-favorites',
+    data: { path }
+  })
+}