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>

docker-compose.prod.yml

@@ -3,7 +3,7 @@ version: '3.8'
 
 services:
   backend:
-    image: photo-sharing-backend:latest
+    image: picpeak-backend:latest
     build:
       context: ./backend
       dockerfile: Dockerfile
@@ -27,10 +27,10 @@ services:
       - ./data:/app/data
       - ./logs:/app/logs
     networks:
-      - photo-sharing
+      - picpeak
 
   frontend:
-    image: photo-sharing-frontend:latest
+    image: picpeak-frontend:latest
     build:
       context: ./frontend
       dockerfile: Dockerfile
@@ -38,7 +38,7 @@ services:
     depends_on:
       - backend
     networks:
-      - photo-sharing
+      - picpeak
 
   nginx:
     image: nginx:alpine
@@ -55,7 +55,7 @@ services:
       - frontend
       - backend
     networks:
-      - photo-sharing
+      - picpeak
     command: "/bin/sh -c 'while :; do sleep 6h & wait $${!}; nginx -s reload; done & nginx -g \"daemon off;\"'"
 
   certbot:
@@ -72,11 +72,11 @@ services:
     environment:
       - POSTGRES_USER=${DB_USER:-photoapp}
       - POSTGRES_PASSWORD=${DB_PASSWORD}
-      - POSTGRES_DB=${DB_NAME:-photo_sharing}
+      - POSTGRES_DB=${DB_NAME:-picpeak}
     volumes:
       - postgres_data:/var/lib/postgresql/data
     networks:
-      - photo-sharing
+      - picpeak
 
   umami:
     image: ghcr.io/umami-software/umami:postgresql-latest
@@ -88,10 +88,10 @@ services:
     depends_on:
       - db
     networks:
-      - photo-sharing
+      - picpeak
 
 networks:
-  photo-sharing:
+  picpeak:
     driver: bridge
 
 volumes: