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[GXiang314]

This pull request includes various changes to the project, focusing on Docker configuration, GitHub workflows, and backend/frontend setup. The most important changes include updating Docker configurations, adding GitHub workflows for building and testing, and modifying environment settings and package configurations.

Docker Configuration Updates:

• Added .dockerignore files for the main project and apps/backend to exclude unnecessary files from Docker builds. [1] [2]
• Updated Dockerfile for apps/backend to support multi-stage builds and improved dependency management.
• Added Dockerfile for apps/frontend to support multi-stage builds and optimized dependencies.

GitHub Workflows:

• Added workflow for building the web frontend service on push and pull request events.
• Added workflow for building the heartbeat service on push and pull request events.
• Added workflow for building and testing the backend service on push and pull request events.

Environment and Configuration Changes:

• Updated environment variables in apps/backend/.env.development and apps/frontend/.env.development to reflect new port and host settings. [1] [2]
• Modified package.json and tsconfig.json in apps/backend to reflect dependency updates and configuration changes for testing and building. [1] [2]
• Added turbo.json to apps/backend for task management.

Code Changes:

• Added signal handling in apps/backend/src/index.ts to gracefully shut down the server.
• Updated import statements in apps/frontend/pages/room.vue to use lodash-es instead of lodash.

Miscellaneous:

• Added .npmrc to enable linking workspace packages.
• Updated GitHub Actions to use the latest versions of setup actions and pnpm. [1] [2] [3]