move over

frontend/src/api/addresses.jsx

@@ -1,8 +1,7 @@
 // API client for address management
 
 import { getAuthHeaders, getAuthHeadersSimple } from './authHeaders';
-
-const API_BASE = '/api';
+import { API_BASE } from './config';
 
 /**
  * Create a new blockchain address to monitor

frontend/src/api/alertEvents.jsx

@@ -1,8 +1,7 @@
 // API client for alert event history
 
 import { getAuthHeadersSimple } from './authHeaders';
-
-const API_BASE = '/api';
+import { API_BASE } from './config';
 
 /**
  * Get all alert events (history)

frontend/src/api/alerts.jsx

@@ -1,8 +1,7 @@
 // API client for alert rule management
 
 import { getAuthHeaders, getAuthHeadersSimple } from './authHeaders';
-
-const API_BASE = '/api';
+import { API_BASE } from './config';
 
 /**
  * Alert types supported by the system

frontend/src/api/config.js

@@ -0,0 +1 @@
+export const API_BASE = import.meta.env.VITE_API_BASE || '/v1';

frontend/src/api/notificationConfig.jsx

@@ -1,8 +1,7 @@
 // API client for notification configuration
 
 import { getAuthHeaders } from './authHeaders';
-
-const API_BASE = '/api';
+import { API_BASE } from './config';
 
 /**
  * Get notification configuration for current user

frontend/src/api/status.jsx

@@ -1,6 +1,6 @@
 // API client for system status
 
-const API_BASE = '/api';
+import { API_BASE } from './config';
 
 /**
  * Get system status including latest processed block and health

frontend/src/components/AlertForm.jsx

@@ -28,7 +28,7 @@ export default function AlertForm({ onSubmit }) {
 
     onSubmit({
       type,
-      threshold: needsThreshold ? threshold : undefined,
+      threshold: needsThreshold ? Number(threshold) : undefined,
     });
 
     setThreshold("");