feat(ts): 实现 Polaris 可交互首页

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

ts/web/nextjs/polaris/src/services/links.ts

@@ -0,0 +1,25 @@
+import linksData from "@/data/links.json"
+import type { NavLink } from "@/types/navigation"
+
+const links = linksData satisfies NavLink[]
+
+function cloneLink(link: NavLink): NavLink {
+  return { ...link, keywords: [...link.keywords] }
+}
+
+export function getLinks(): NavLink[] {
+  return links.map(cloneLink)
+}
+
+export function getPinnedLinks(limit = 8): NavLink[] {
+  // 首页顺序必须独立于分类内 sort，否则 Vercel 与 Figma 无法同时满足两处设计。
+  return links
+    .filter((link) => link.pinned)
+    .map(cloneLink)
+    .sort(
+      (a, b) =>
+        (a.pinnedSort ?? Number.MAX_SAFE_INTEGER) -
+        (b.pinnedSort ?? Number.MAX_SAFE_INTEGER),
+    )
+    .slice(0, limit)
+}