Add testing framework and GitHub Actions CI/CD

[hadv]

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[hadv]

project/
├── src/
│ ├── core/ # Core functionality
│ │ ├── db-service.ts
│ │ └── embedding-utils.ts
│ ├── types/ # Type definitions
│ │ ├── qdrant-types.ts
│ │ ├── chroma-types.ts
│ │ └── declarations/ # Type declarations for third-party libraries
│ │ └── pdf-parse.d.ts
│ └── scripts/ # Utility scripts
│ ├── data-import.ts
│ └── document-uploader.ts
├── tests/ # Test files
├── index.ts # Main entry point
└── other config files...