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]>

frontend/src/pages/public/LegalPage.tsx

@@ -46,7 +46,7 @@ export const LegalPage: React.FC = () => {
   // Update page title
   useEffect(() => {
     if (page?.title) {
-      document.title = `${page.title} - Wedding Photo Sharing`;
+      document.title = `${page.title} - PicPeak`;
     }
   }, [page?.title]);
 
@@ -129,7 +129,7 @@ export const LegalPage: React.FC = () => {
             </Link>
           </div>
           <p className="text-sm text-neutral-500 mt-4">
-            © 2024 Wedding Photo Sharing. All rights reserved.
+            © 2024 PicPeak. All rights reserved.
           </p>
         </div>
       </footer>