https://second-shift.app/https://second-shift.app/docs/architecture/https://second-shift.app/docs/backend-architecture/https://second-shift.app/docs/comparisons/https://second-shift.app/docs/engineering-tasks/https://second-shift.app/docs/environment-variables/https://second-shift.app/docs/github-app/https://second-shift.app/docs/mcp/https://second-shift.app/docs/overview/https://second-shift.app/docs/production-deployment/https://second-shift.app/docs/quickstart/https://second-shift.app/docs/repository-configuration/https://second-shift.app/docs/security-model/https://second-shift.app/docs/self-hosting/