feat: 接入后端全局Snippet（导航菜单/站点设置），补充团队/证言/合作伙伴 service 层

- Header 改为异步 Server Component，接入 NavigationMenu（name=main），
  接口不可用或未配置时回退静态导航项
- Footer 改为异步 Server Component，接入 SiteSettings，
  公司名/ICP备案号/备案链接优先取后台配置，缺省回退硬编码值
- types/wagtail.ts 新增 TeamMember/Testimonial/Partner/NavigationMenu/SiteSettings 类型
- 新增 services: team/testimonial/partner/navigation/site-settings.service.ts
- lint、build 均已验证通过

services/navigation.service.ts

@@ -0,0 +1,19 @@
+import { fetchAPI } from "./api-client";
+import type { NavigationMenuValue } from "@/types/wagtail";
+
+/**
+ * 根据 name（如 main / footer）获取导航菜单（apps.core.NavigationMenu Snippet）。
+ * 未在后台配置对应菜单时返回 null，调用方应回退到静态导航项。
+ */
+export async function getNavigationMenu(
+  name: string,
+): Promise<NavigationMenuValue | null> {
+  try {
+    return await fetchAPI<NavigationMenuValue>(
+      `/api/v1/custom/core/navigation/?name=${encodeURIComponent(name)}`,
+      { tags: [`navigation:${name}`] },
+    );
+  } catch {
+    return null;
+  }
+}

services/partner.service.ts

@@ -0,0 +1,11 @@
+import { fetchAPI } from "./api-client";
+import type { PartnerValue } from "@/types/wagtail";
+
+/** 获取合作伙伴/客户 Logo 列表（apps.core.Partner Snippet）。 */
+export async function getPartners(): Promise<PartnerValue[]> {
+  const res = await fetchAPI<{ items: PartnerValue[] }>(
+    "/api/v1/custom/core/partners/",
+    { tags: ["partners"] },
+  );
+  return res.items;
+}

services/site-settings.service.ts

@@ -0,0 +1,14 @@
+import { fetchAPI } from "./api-client";
+import type { SiteSettingsValue } from "@/types/wagtail";
+
+/** 获取站点全局配置（apps.core.SiteSettings，wagtail.contrib.settings）。 */
+export async function getSiteSettings(): Promise<SiteSettingsValue | null> {
+  try {
+    return await fetchAPI<SiteSettingsValue>(
+      "/api/v1/custom/core/site-settings/",
+      { tags: ["site-settings"] },
+    );
+  } catch {
+    return null;
+  }
+}

services/team.service.ts

@@ -0,0 +1,11 @@
+import { fetchAPI } from "./api-client";
+import type { TeamMemberValue } from "@/types/wagtail";
+
+/** 获取团队成员列表（apps.core.TeamMember Snippet）。 */
+export async function getTeamMembers(): Promise<TeamMemberValue[]> {
+  const res = await fetchAPI<{ items: TeamMemberValue[] }>(
+    "/api/v1/custom/core/team/",
+    { tags: ["team"] },
+  );
+  return res.items;
+}

services/testimonial.service.ts

@@ -0,0 +1,11 @@
+import { fetchAPI } from "./api-client";
+import type { TestimonialValue } from "@/types/wagtail";
+
+/** 获取客户证言列表（apps.core.Testimonial Snippet）。 */
+export async function getTestimonials(): Promise<TestimonialValue[]> {
+  const res = await fetchAPI<{ items: TestimonialValue[] }>(
+    "/api/v1/custom/core/testimonials/",
+    { tags: ["testimonials"] },
+  );
+  return res.items;
+}