feat: wire admin workflows to real APIs

src/apps/admin/AdminDrainageFieldsPage.tsx

@@ -148,11 +148,11 @@ export function AdminDrainageFieldsPage() {
       align: 'right',
       render: (record) => (
         <div className="admin-drainage-actions">
-          <Button icon={<Pencil size={17} />} iconOnly onClick={() => setEditingField(record)} variant="ghost">编辑</Button>
+          <Button icon={<Pencil size={17} />} onClick={() => setEditingField(record)} size="sm" variant="ghost">编辑</Button>
           <Button
             icon={<Trash2 size={17} />}
-            iconOnly
             onClick={() => setFields((current) => current.filter((item) => item.id !== record.id))}
+            size="sm"
             variant="danger"
           >
             删除
@@ -166,8 +166,8 @@ export function AdminDrainageFieldsPage() {
     <section className="page-stack admin-system-page admin-drainage-page">
       <div className="page-heading">
         <div>
-          <Breadcrumb items={['基础配置', '引流信息报备字段库']} />
-          <h1>引流信息报备字段库</h1>
+          <Breadcrumb items={['基础配置', '报备字段库']} />
+          <h1>报备字段库</h1>
         </div>
       </div>