feat: api health check and version display

src/lib/api/server/health.ts

@@ -0,0 +1,17 @@
+const BASE_URL = process.env.API_BASE_URL || 'http://localhost:8080';
+
+export type HealthStatus = { healthy: true; version: string } | { healthy: false; version: null };
+
+export async function checkHealth(): Promise<HealthStatus> {
+	try {
+		const response = await fetch(`${BASE_URL}/system/health`, {
+			method: 'GET',
+			next: { revalidate: 0 }
+		});
+		if (!response.ok) return { healthy: false, version: null };
+		const version = await response.text();
+		return { healthy: true, version: version.trim() || 'unknown' };
+	} catch {
+		return { healthy: false, version: null };
+	}
+}