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 <noreply@anthropic.com>

SETUP_GUIDE.md

@@ -1,9 +1,9 @@
-# Wedding Photo Sharing Platform - Complete Setup Guide
+# PicPeak - Complete Setup Guide
 
 ## Repository Created Successfully! 🎉
 
-Your wedding photo sharing platform repository has been created at:
-**https://gitea.nothaft.cloud/paul/wedding-photo-sharing**
+Your PicPeak repository has been created at:
+**https://gitea.nothaft.cloud/paul/picpeak**
 
 ## What's Been Created
 
@@ -26,8 +26,8 @@ I've uploaded the core files needed to run the application:
 
 ### 1. Clone the Repository
 ```bash
-git clone https://gitea.local.nothaft.cloud/paul/wedding-photo-sharing.git
-cd wedding-photo-sharing
+git clone https://gitea.local.nothaft.cloud/paul/picpeak.git
+cd picpeak
 ```
 
 ### 2. Run the Setup Script