fix: switch API routing to query string for Nginx compatibility

public/shell.php

@@ -76,7 +76,7 @@
         // مُصادَق — API Client (Inlined for reliability)
         // ══════════════════════════════════════════════════════════
         const API = {
-            baseUrl: 'index.php/api/v1', // Correct entry point and prefix
+            baseUrl: 'index.php?route=/api/v1',
             accessToken: localStorage.getItem('access_token'),
             async post(path, body) {
                 const headers = { 'Accept': 'application/json', 'Content-Type': 'application/json' };