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>

deploy/scripts/deploy.sh

@@ -8,11 +8,11 @@ YELLOW='\033[1;33m'
 BLUE='\033[0;34m'
 NC='\033[0m' # No Color
 
-echo -e "${GREEN}Photo Sharing Platform Deployment Script${NC}"
+echo -e "${GREEN}PicPeak Deployment Script${NC}"
 echo "========================================"
 
 # Default values
-STACK_NAME="photo-sharing"
+STACK_NAME="picpeak"
 ENV_FILE="../../.env.production"
 REGISTRY_URL="${REGISTRY_URL:-}"
 VERSION="${VERSION:-latest}"
@@ -42,7 +42,7 @@ while [[ $# -gt 0 ]]; do
             echo "  --env FILE          Path to environment file (default: ../../.env.production)"
             echo "  --registry URL      Docker registry URL"
             echo "  --version VERSION   Image version to deploy (default: latest)"
-            echo "  --stack-name NAME   Stack name (default: photo-sharing)"
+            echo "  --stack-name NAME   Stack name (default: picpeak)"
             exit 0
             ;;
         *)