fix: jellyfin save now matches the new { ok, saved, testError } response shape

When I switched the settings UI to read result.saved to decide whether the
'✓ Saved & connected' / '⚠ Saved, but connection test failed' / '✗ error'
states should appear, I only updated the Radarr and Sonarr endpoints to
return that shape. Jellyfin still returned bare { ok: true } so the UI
saw saved=undefined and showed '✗ Save failed' even on a perfectly
successful save — making it look like Jellyfin had stopped working.

Bring Jellyfin in line:
- Save the URL+API key (and setup_complete) BEFORE running testConnection
  so the input survives a failed probe (same fix as Radarr/Sonarr).
- Only do the admin-user discovery on test success.
- Return { ok, saved, testError }.

server/api/settings.ts

@@ -19,22 +19,27 @@ app.post("/jellyfin", async (c) => {
 
 	if (!url || !apiKey) return c.json({ ok: false, error: "URL and API key are required" }, 400);
 
-	const result = await testJellyfin({ url, apiKey });
-	if (!result.ok) return c.json({ ok: false, error: result.error });
-
+	// Save first so the user's input is never silently dropped on a test
+	// failure (matches the Radarr/Sonarr pattern). The frontend reads the
+	// { ok, saved, testError } shape to decide what message to show.
 	setConfig("jellyfin_url", url);
 	setConfig("jellyfin_api_key", apiKey);
 	setConfig("setup_complete", "1");
 
-	try {
-		const users = await getUsers({ url, apiKey });
-		const admin = users.find((u) => u.Name === "admin") ?? users[0];
-		if (admin?.Id) setConfig("jellyfin_user_id", admin.Id);
-	} catch {
-		/* ignore */
+	const result = await testJellyfin({ url, apiKey });
+
+	// Best-effort admin discovery only when the connection works; ignore failures.
+	if (result.ok) {
+		try {
+			const users = await getUsers({ url, apiKey });
+			const admin = users.find((u) => u.Name === "admin") ?? users[0];
+			if (admin?.Id) setConfig("jellyfin_user_id", admin.Id);
+		} catch {
+			/* ignore */
+		}
 	}
 
-	return c.json({ ok: true });
+	return c.json({ ok: result.ok, saved: true, testError: result.ok ? undefined : result.error });
 });
 
 // Persist values BEFORE testing the connection. The previous behaviour