first commit

frontend/public/preload.js

@@ -0,0 +1,19 @@
+const { logger } = require('../../backend/src/config/logger');
+logger.info('[Preload] Script started.');
+const { contextBridge, ipcRenderer } = require('electron');
+contextBridge.exposeInMainWorld(
+  'electronAPI',
+  {
+    getAppConfig: () => ipcRenderer.invoke('get-app-config'),
+    onCardDetected: (callback) => {
+      ipcRenderer.on('card-detected', (event, uid) => callback(uid));
+    },
+
+    removeCardDetectedListeners: () => {
+      ipcRenderer.removeAllListeners('card-detected');
+    }
+  }
+);
+
+logger.log('[Preload] Script finished. electronAPI exposed.');
+window.dispatchEvent(new Event('electronApiReady'));