init geek calc

app.js

@@ -0,0 +1,26 @@
+// Main application file for Geek Calculator
+
+// Initialize the application when DOM is loaded
+document.addEventListener('DOMContentLoaded', () => {
+    // Create instances of our calculator components
+    const calculator = new Calculator.Calculator();
+    const rpnCalculator = new RPNCalculator.RPNCalculator();
+    const stateManager = new StateManager.StateManager();
+    const uiController = new UIController.UIController(calculator, rpnCalculator, stateManager);
+    
+    // Initialize the UI
+    uiController.init();
+    
+    // Register service worker for offline capability if supported
+    if ('serviceWorker' in navigator) {
+        window.addEventListener('load', () => {
+            navigator.serviceWorker.register('./service-worker.js')
+                .then(registration => {
+                    console.log('ServiceWorker registration successful');
+                })
+                .catch(err => {
+                    console.log('ServiceWorker registration failed', err);
+                });
+        });
+    }
+});