Update download method

src/lib/components/DownloadManager.svelte

@@ -1,3 +1,69 @@
 <script lang="ts">
-	let props = $props();
+	import { onMount } from 'svelte';
+	let { url, dismiss } = $props();
+
+	let visible = $state(false);
+	let progress = $state(0);
+	let filename = $state('');
+	onMount(async () => {
+		if (!url) return;
+
+		try {
+			visible = true;
+
+			const response = await fetch(url);
+			if (!response.ok) throw new Error('Download failed');
+
+			const contentDisposition: string = response?.headers?.get('content-disposition');
+			filename = contentDisposition.split('filename=')[1];
+			const contentLength: number = Number(response?.headers?.get('content-length'));
+			const reader = response?.body?.getReader();
+			const chunks: Uint8Array[] = [];
+			let receivedLength = 0;
+
+			while (true) {
+				const { done, value }: ReadableStreamReadResult<Uint8Array> = await reader.read();
+				if (done) break;
+				if (value) {
+					chunks.push(value);
+					receivedLength += value.length;
+					progress = Math.round((receivedLength / contentLength) * 100);
+				}
+			}
+
+			const blob = new Blob(chunks);
+			const downloadUrl = URL.createObjectURL(blob);
+
+			const a = document.createElement('a');
+			a.href = downloadUrl;
+			a.download = filename;
+			a.click();
+
+			URL.revokeObjectURL(downloadUrl);
+
+			setTimeout(() => {
+				visible = false;
+			}, 1500); // auto-dismiss
+		} catch (err) {
+			console.error(err);
+			visible = false;
+		}
+	});
 </script>
+
+{#if visible}
+	<div class="fixed inset-0 z-50 flex items-center justify-center bg-black/80 backdrop-blur-sm font-mono">
+		<div class="w-[90%] max-w-sm rounded-2xl border border-green-400 bg-[#000f00] p-6 text-green-300 shadow-2xl text-sm">
+			<p class="mb-2 text-center text-cyan-300">
+				Downloading <span class="text-green-400 font-semibold">{filename}</span>
+			</p>
+			<div class="w-full h-4 rounded-md bg-black border border-green-500 overflow-hidden">
+				<div
+					class="h-full bg-gradient-to-r from-green-400 to-green-600 transition-all duration-300"
+					style="width: {progress}%"
+				/>
+			</div>
+			<p class="mt-2 text-center text-pink-400">{progress}%</p>
+		</div>
+	</div>
+{/if}