Add user avatar management and moderation

src/routes/avatars/user/[id]/+server.ts

@@ -0,0 +1,17 @@
+import { getDatabase } from '$lib/server/database';
+import { readUploadedAvatar } from '$lib/server/avatars';
+import { error } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+
+export const GET: RequestHandler = async ({ params }) => {
+	if (!/^[0-9a-f-]{36}$/i.test(params.id)) error(404, 'Avatar not found');
+	const image = await readUploadedAvatar(await getDatabase(), params.id);
+	if (!image) error(404, 'Avatar not found');
+	return new Response(new Uint8Array(image), {
+		headers: {
+			'content-type': 'image/webp',
+			'cache-control': 'public, max-age=31536000, immutable',
+			'x-content-type-options': 'nosniff'
+		}
+	});
+};