feat: update Dockerfile, add category pages, fonts and product images

Rebuild Docker setup with simplified nginx-only Dockerfile (build runs
on host). Add category detail pages, IRANSans font files, product
images, and update all landing sections.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/routes/sitemap.xml.ts

@@ -1,6 +1,15 @@
 import { absUrl } from "../../shared/config/site";
+import { categorySlugs } from "../../shared/data/categories";
 
-const pages = ["/"];
+interface SitemapEntry {
+  loc: string;
+  priority: string;
+}
+
+const pages: SitemapEntry[] = [
+  { loc: "/", priority: "1" },
+  ...categorySlugs.map((s) => ({ loc: `/categories/${s}`, priority: "0.8" })),
+];
 
 export default defineEventHandler((event) => {
   setHeader(event, "Content-Type", "application/xml; charset=utf-8");
@@ -8,7 +17,7 @@ export default defineEventHandler((event) => {
   const urls = pages
     .map(
       (p) =>
-        `<url>\n<loc>${absUrl(p)}</loc>\n<lastmod>${lastmod}</lastmod>\n<changefreq>monthly</changefreq>\n<priority>1</priority>\n</url>`,
+        `<url>\n<loc>${absUrl(p.loc)}</loc>\n<lastmod>${lastmod}</lastmod>\n<changefreq>monthly</changefreq>\n<priority>${p.priority}</priority>\n</url>`,
     )
     .join("\n");
   return `<?xml version="1.0" encoding="UTF-8"?>\n<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">\n${urls}\n</urlset>\n`;