Vector database

[milistu]

Summary

Refactored the database processing and embedding functionality into a single, streamlined script. This update simplifies the previous notebook-based implementation, improving code maintainability and usability.

Key Changes

• Combined multiple scripts into one unified script that can be executed from the terminal.
• Enhanced code readability and added comprehensive docstrings.
• Updated the README to reflect the new script usage and setup instructions.

Benefits

• Simplifies the execution process—now achievable through a single command.
• Enhances code clarity and makes maintenance easier.
• Provides clear documentation to assist new users and contributors.