Ajout du flux RSS pour le photo blog

Création de la route /rss.xml avec les 13 posts photo FR via @astrojs/rss.

src/pages/rss.xml.ts

@@ -0,0 +1,32 @@
+import rss from "@astrojs/rss";
+import type { APIContext } from "astro";
+import { getCollection } from "astro:content";
+import { getPostBaseSlug } from "../utils/i18n";
+
+export async function GET(context: APIContext) {
+	const photoBlogPosts = await getCollection("photoBlogPosts");
+	const frPosts = photoBlogPosts
+		.filter((post) => (post.data.lang ?? "fr") === "fr")
+		.sort(
+			(a, b) =>
+				new Date(b.data.date).getTime() - new Date(a.data.date).getTime(),
+		);
+
+	return rss({
+		title: "Jalil Arfaoui — Photo Blog",
+		description:
+			"Blog photo de Jalil Arfaoui. Reportages, séries et histoires en images.",
+		site: context.site!.toString(),
+		items: frPosts.map((post) => {
+			const slug = getPostBaseSlug(post.id);
+			const year = post.data.date.getFullYear();
+			return {
+				title: post.data.title,
+				description: post.data.description,
+				pubDate: new Date(post.data.date),
+				link: `/photo/blog/${year}/${slug}/`,
+			};
+		}),
+		customData: "<language>fr</language>",
+	});
+}