refactor: rename project from wedding-photo-sharing to PicPeak

- Update Docker image names and network configurations
- Rename package.json project names to picpeak-backend/frontend
- Update CI/CD configurations (Drone CI and GitHub Actions)
- Update documentation and setup scripts
- Update application branding in source code
- Change default database name to picpeak
- Update PM2 ecosystem config

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

Co-Authored-By: Claude <[email protected]>

backend/src/routes/events.js

@@ -53,9 +53,9 @@ router.post('/', adminAuth, [
     // Hash password
     const password_hash = await bcrypt.hash(password, 10);
     
-    // Calculate expiration date
-    const expires_at = new Date();
-    expires_at.setDate(expires_at.getDate() + expiration_days);
+    // Calculate expiration date (days after event date)
+    const expires_at = new Date(event_date);
+    expires_at.setDate(expires_at.getDate() + parseInt(expiration_days, 10));
     
     // Create folder structure
     const storagePath = process.env.STORAGE_PATH || path.join(__dirname, '../../../storage');
@@ -86,7 +86,8 @@ router.post('/', adminAuth, [
       event_date: new Date(event_date).toLocaleDateString(),
       gallery_link: shareLink,
       gallery_password: password,
-      expiry_date: expires_at.toLocaleDateString()
+      expiry_date: expires_at.toLocaleDateString(),
+      welcome_message: welcome_message || ''
     });
     
     res.json({