Added dotenv package and implemented proper .env file loading for Electron application. Fixed API key loading issue.

main.js

@@ -1,6 +1,10 @@
 const { app, BrowserWindow, dialog, ipcMain } = require('electron');
 const path = require('path');
 const { scanDirectory, extractFileMetadata } = require('./utils/fileUtils');
+const dotenv = require('dotenv');
+
+// Load environment variables from .env file
+dotenv.config();
 
 // Handle creating/removing shortcuts on Windows when installing/uninstalling.
 try {