feat(deployment): update Semaphore stack and Traefik configuration

- Add QUICKSTART.md and SETUP_REPOSITORY.md for Semaphore stack
- Add playbooks directory for Semaphore deployment
- Update Semaphore docker-compose.yml, env.example, and README
- Add Traefik local configuration files
- Disable semaphore.yml in Traefik dynamic config
- Update docker-compose.local.yml and build-image workflow

deployment/stacks/semaphore/env.example

@@ -14,10 +14,10 @@ MYSQL_PASSWORD=semaphore
 # Semaphore Configuration
 # ============================================
 
-# Port binding (default: 3001)
+# Port binding (default: 9300)
 # Only accessible via localhost (127.0.0.1)
 # Note: Changed from 3000 to avoid conflict with Gitea
-SEMAPHORE_PORT=3001
+SEMAPHORE_PORT=9300
 
 # Admin User Configuration
 SEMAPHORE_ADMIN=admin