fix(import): support HTML-wrapped clone furnidata and skip empty icon sources

Leet serves its furnidata as HTML with the JSON embedded in a <pre>
block, and Cloudflare blocks Node's direct fetch. Extract the JSON
payload from the HTML (direct or via the FlareSolverr fallback) before
giving up on a Cloudflare challenge.

Also skip the standalone icon download when a clone source has no
iconBaseUrl configured (Habbo, Hubba, Fresh, Kyzegs, RidgeRP), which
previously produced invalid relative URLs like /xxx_icon.png and a
flood of download errors before falling back to extracting the icon
from the .nitro bundle.

src/lib/services/clone-import.ts

@@ -85,6 +85,24 @@ export function parseFurnidata(data: RemoteFurnidata): SourceFurni[] {
 const cache = new Map<string, { list: SourceFurni[]; ts: number }>();
 const TTL = 5 * 60 * 1000;
 
+/**
+ * Some sources serve their furnidata wrapped in an HTML document (e.g. Leet's
+ * JSON is embedded in a `<pre>` block inside the page, often surfaced by the
+ * FlareSolverr fallback). Extract the JSON payload before giving up.
+ */
+function extractJsonFromHtml(body: string): string | null {
+	const pre = body.match(/<pre[^>]*>([\s\S]*?)<\/pre>/);
+	const candidate = pre?.[1] ?? body;
+	const trimmed = candidate.trim();
+	if (!trimmed.startsWith("{") && !trimmed.startsWith("[")) return null;
+	try {
+		JSON.parse(trimmed);
+		return trimmed;
+	} catch {
+		return null;
+	}
+}
+
 export async function fetchSourceFurnidata(
 	url: string,
 	now = Date.now(),
@@ -115,9 +133,13 @@ export async function fetchSourceFurnidata(
 		}
 	}
 	if (body.trimStart().startsWith("<")) {
-		throw new Error(
-			`Source ${url} is behind a Cloudflare challenge that could not be bypassed. Start FlareSolverr and check its logs.`,
-		);
+		const extracted = extractJsonFromHtml(body);
+		if (!extracted) {
+			throw new Error(
+				`Source ${url} is behind a Cloudflare challenge that could not be bypassed. Start FlareSolverr and check its logs.`,
+			);
+		}
+		body = extracted;
 	}
 	let list: SourceFurni[];
 	try {
@@ -253,14 +275,21 @@ export async function cloneSingleFurni(params: {
 		logger.warn("[clone-import] invalid .nitro bundle for", { classname });
 		return { ok: false, classname, warnings, error: "invalid .nitro bundle" };
 	}
-	const iconDl = await downloadFile(
-		`${source.iconBaseUrl}/${classname}_icon.png`,
-		iconPath,
-		{
-			maxRetries: 1,
-			validate: "png",
-		},
-	);
+	let iconDl: { ok: boolean; size: number };
+	if (source.iconBaseUrl) {
+		iconDl = await downloadFile(
+			`${source.iconBaseUrl}/${classname}_icon.png`,
+			iconPath,
+			{
+				maxRetries: 1,
+				validate: "png",
+			},
+		);
+	} else {
+		// No standalone icons on this source (e.g. Habbo/Hubba) — fall through to
+		// extracting the catalog icon from the .nitro bundle we just downloaded.
+		iconDl = { ok: false, size: 0 };
+	}
 	if (!iconDl.ok) {
 		// Source serves no standalone icon (e.g. icons embedded in the .nitro) —
 		// extract the catalog icon from the bundle we just downloaded.