fix: topology container height

public/api-client.js

@@ -2,7 +2,20 @@
 
 class ApiClient {
     constructor() {
-        this.baseUrl = (typeof window !== 'undefined' && window.API_BASE_URL) || 'http://localhost:3001'; // Backend server URL
+        // Auto-detect server URL based on current location
+        const currentHost = window.location.hostname;
+        const currentPort = window.location.port;
+        
+        // If accessing from localhost, use localhost:3001
+        // If accessing from another device, use the same hostname but port 3001
+        if (currentHost === 'localhost' || currentHost === '127.0.0.1') {
+            this.baseUrl = 'http://localhost:3001';
+        } else {
+            // Use the same hostname but port 3001
+            this.baseUrl = `http://${currentHost}:3001`;
+        }
+        
+        console.log('API Client initialized with base URL:', this.baseUrl);
     }
 
     async request(path, { method = 'GET', headers = {}, body = undefined, query = undefined, isForm = false } = {}) {