seo: expand sitemap to include all project pages

src/app/sitemap.ts

@@ -1,6 +1,14 @@
 import { MetadataRoute } from "next";
+import { projects } from "@/data/projects";
 
 export default function sitemap(): MetadataRoute.Sitemap {
+  const projectEntries: MetadataRoute.Sitemap = projects.map((project) => ({
+    url: `https://www.wilddragon.net/projects/${project.slug}`,
+    lastModified: new Date(),
+    changeFrequency: "yearly",
+    priority: 0.8,
+  }));
+
   return [
     {
       url: "https://www.wilddragon.net",
@@ -8,5 +16,6 @@ export default function sitemap(): MetadataRoute.Sitemap {
       changeFrequency: "monthly",
       priority: 1,
     },
+    ...projectEntries,
   ];
 }