fix: replace traefik.me with sslip.io for auto-generated domains

Fixes #4365 — traefik.me had availability issues. sslip.io uses the same
IP-in-subdomain format, supports both IPv4 and IPv6, and is more reliable.

packages/server/src/services/ai.ts

@@ -229,7 +229,7 @@ export const suggestVariants = async ({
 
 		    Domain Rules - For each service that needs to be exposed to the internet:
 		    1. Define a domain with:
-		       - host: {service-name}-{random-3-chars-hex}-${ip ? ip.replaceAll(".", "-") : ""}.traefik.me
+		       - host: {service-name}-{random-3-chars-hex}-${ip ? ip.replaceAll(".", "-") : ""}.sslip.io
 		       - port: the internal port the service runs on
 		       - serviceName: the name of the service in the docker-compose
 		    2. Make sure the service is properly configured to work with the specified port

packages/server/src/services/preview-deployment.ts

@@ -136,7 +136,7 @@ export const createPreviewDeployment = async (
 		where: eq(organization.id, application.environment.project.organizationId),
 	});
 	const generateDomain = await generateWildcardDomain(
-		application.previewWildcard || "*.traefik.me",
+		application.previewWildcard || "*.sslip.io",
 		appName,
 		application.server?.ipAddress || "",
 		org?.ownerId || "",
@@ -238,7 +238,7 @@ const generateWildcardDomain = async (
 		throw new Error('The base domain must start with "*."');
 	}
 	const hash = `${appName}`;
-	if (baseDomain.includes("traefik.me")) {
+	if (baseDomain.includes("sslip.io")) {
 		let ip = "";
 
 		if (process.env.NODE_ENV === "development") {