Remove remaining frontend console logs for production

- Remove HTML loading and WASM initialization logs
- Clean up service worker registration/activation logs
- Remove alarm system initialization messages
- Remove notification permission logging
- Keep essential error logging for troubleshooting
- Clean production console output

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/service-worker.js

@@ -7,13 +7,11 @@ const STORAGE_KEY = 'calendar_alarms';
 
 // Install event
 self.addEventListener('install', event => {
-    console.log(`Service Worker ${SW_VERSION} installing...`);
     self.skipWaiting(); // Activate immediately
 });
 
 // Activate event
 self.addEventListener('activate', event => {
-    console.log(`Service Worker ${SW_VERSION} activated`);
     event.waitUntil(self.clients.claim()); // Take control immediately
 });
 
@@ -52,7 +50,6 @@ function handleCheckAlarms(event, data) {
             data: dueAlarms
         });
         
-        console.log(`Checked ${allAlarms.length} alarms, found ${dueAlarms.length} due`);
     } catch (error) {
         console.error('Error checking alarms:', error);
         event.ports[0].postMessage({
@@ -119,7 +116,6 @@ setInterval(async () => {
             });
         });
         
-        console.log('Requested alarm check from main app');
     } catch (error) {
         console.error('Background alarm check failed:', error);
     }
@@ -151,6 +147,4 @@ self.addEventListener('notificationclick', event => {
             return self.clients.openWindow('/');
         })
     );
-});
-
-console.log(`Calendar Alarms Service Worker ${SW_VERSION} loaded`);
+});