feat(welcome): 站点外观 - 增加欢迎页开放开关并修复入口分包

web/src/pages/admin/settings/components/welcome-setting.tsx

@@ -0,0 +1,56 @@
+import { useEffect, useState } from "react";
+import { App, Button } from "antd";
+import { Switch } from "@/components/ui/base/switch";
+import { getAdminFeatureAvailability, updateAdminFeatureAvailability } from "@/services/api/auth";
+import { useUserStore } from "@/stores/use-user-store";
+
+export function WelcomeSetting() {
+    const { message } = App.useApp();
+    const [enabled, setEnabled] = useState<boolean | null>(null);
+    const [saving, setSaving] = useState(false);
+    const [error, setError] = useState("");
+    const [revision, setRevision] = useState(0);
+    const setFeatures = useUserStore((state) => state.setFeatures);
+
+    useEffect(() => {
+        let active = true;
+        setError("");
+        getAdminFeatureAvailability().then(({ features }) => {
+            if (typeof features.welcomeEnabled !== "boolean") throw new Error("欢迎页配置无效");
+            if (active) setEnabled(features.welcomeEnabled);
+        }).catch(() => {
+            if (active) setError("读取欢迎页状态失败，请重试。");
+        });
+        return () => { active = false; };
+    }, [revision]);
+
+    async function changeWelcome(value: boolean) {
+        if (saving) return;
+        setSaving(true);
+        try {
+            const { features } = await updateAdminFeatureAvailability({ welcomeEnabled: value });
+            if (features.welcomeEnabled !== value) throw new Error("欢迎页状态未保存，请重试");
+            setEnabled(features.welcomeEnabled);
+            setFeatures(features);
+            message.success(value ? "欢迎页已启用" : "欢迎页已关闭");
+        } catch (error) {
+            message.error(error instanceof Error ? error.message : "保存欢迎页状态失败");
+        } finally {
+            setSaving(false);
+        }
+    }
+
+    return (
+        <div className="admin-appearance-logo-frame-option">
+            <div className="admin-appearance-logo-frame-copy">
+                <strong>启用欢迎页</strong>
+                <p>切换后立即保存。关闭后访问 /welcome 将跳转到首页。</p>
+                {error ? <div role="alert">{error}<Button onClick={() => setRevision((value) => value + 1)}>重试</Button></div> : null}
+            </div>
+            <div className="admin-appearance-logo-frame-control">
+                <span>{enabled === null ? "读取中" : saving ? "保存中" : enabled ? "已启用" : "已关闭"}</span>
+                <Switch aria-label="启用欢迎页" checked={enabled === true} disabled={enabled === null || saving || Boolean(error)} onChange={(value) => void changeWelcome(value)} />
+            </div>
+        </div>
+    );
+}