feat(平台端): 园区列表支持 状态显示/禁用启用/级联删除

园区管理每园显示状态(启用/已禁用)；可【禁用】(不删，禁止园区端登录/data)【启用】【删除】；
删除为联级：后端 delete_tenant 一并删 企业/知识库/屏幕 + 引擎缓存；禁用后 /park/auth/login 返回 403。
npm run build 通过。

src/api/park.ts

@@ -20,6 +20,8 @@ export const parkApi = {
     api.put<{ ok: boolean; tenant: Tenant }>(`/park/tenants/${tid}`, body),
   bindAdmin: (tid: string, username: string) => api.post<{ ok: boolean }>(`/park/tenants/${tid}/bind`, { username }),
   unbindAdmin: (tid: string) => api.post<{ ok: boolean }>(`/park/tenants/${tid}/unbind`),
+  deleteTenant: (tid: string) => api.del<{ ok: boolean }>(`/park/tenants/${tid}`),
+  setTenantStatus: (tid: string, status: "active" | "disabled") => api.post<{ ok: boolean }>(`/park/tenants/${tid}/status`, { status }),
 
   // ---- 大屏控制台 ----
   displayState: (tenantId: string) => api.get<DisplayState>("/park/api/display/state", { tenant_id: tenantId }),

src/pages/park/tenant-tab.tsx

@@ -47,6 +47,13 @@ export function TenantTab() {
     if (!window.confirm(`解除「${t.name}」的管理员绑定？`)) return;
     await parkApi.unbindAdmin(t.id); reload();
   };
+  const toggle = async (t: Tenant) => {
+    await parkApi.setTenantStatus(t.id, t.status === "disabled" ? "active" : "disabled"); reload();
+  };
+  const remove = async (t: Tenant) => {
+    if (!window.confirm(`确认删除园区「${t.name}」？将一并删除其全部资源(屏幕/企业/知识库/智能体/大屏数据)且不可恢复！`)) return;
+    await parkApi.deleteTenant(t.id); reload();
+  };
 
   return (
     <div className="space-y-4">
@@ -70,13 +77,16 @@ export function TenantTab() {
               <div>
                 <span className="font-medium">{t.name}</span>
                 <span className="ml-2 text-xs text-muted-foreground">{t.id}</span>
+                <span className={`ml-2 text-xs ${t.status === "disabled" ? "text-destructive" : "text-emerald-600"}`}>{t.status === "disabled" ? "已禁用" : "启用"}</span>
                 <div className="text-xs text-muted-foreground">管理员：{t.admin_username || "（未绑定）"}</div>
                 <div className="text-xs text-muted-foreground">{(t.intro ?? []).join(" · ")}</div>
               </div>
               <div className="flex gap-2">
                 {t.admin_username
-                  ? <Button size="sm" variant="ghost" className="text-destructive" onClick={() => unbind(t)}>解除绑定</Button>
+                  ? <Button size="sm" variant="ghost" onClick={() => unbind(t)}>解除绑定</Button>
                   : <Button size="sm" variant="outline" onClick={() => openBind(t)}>绑定管理员</Button>}
+                <Button size="sm" variant="outline" onClick={() => toggle(t)}>{t.status === "disabled" ? "启用" : "禁用"}</Button>
+                <Button size="sm" variant="ghost" className="text-destructive" onClick={() => remove(t)}>删除</Button>
               </div>
             </div>
           ))}