core: `universal-box doc-db` command

**Is your feature request related to a problem you're trying to solve with Universal-Box? Please describe.**
This issue aims to address the need for comprehensive documentation for various databases within the Universal-Box project. Currently, users may find it challenging to understand how to integrate and utilize different databases effectively in their projects. By automating the documentation process, we can provide clear and accessible information.

**Describe the solution you'd like**
I propose creating a command-line tool that generates markdown documentation for popular database schemas. The initial focus will be on Prisma, but the tool should be designed generically to accommodate other databases as well. The tool will read the database schema files, parse the models and enums, and output a markdown file documenting the schema.

### Expected Features:
- **Prisma Integration**: Generate markdown documentation from Prisma schema files.
- **Generic Database Support**: Extend functionality to support other popular databases such as:
- MySQL
- PostgreSQL
- MongoDB
- SQLite
- Microsoft SQL Server

**Describe alternatives you've considered**
An alternative approach could be to manually document each database schema in markdown files. However, this would be time-consuming and prone to inconsistencies. Automating this process will ensure that documentation is always up-to-date with the latest schema changes.

**How would this feature improve Universal-Box?**
Implementing this feature will enhance the usability of Universal-Box by providing users with clear and concise documentation for integrating various databases into their projects. This will streamline the onboarding process for new users and reduce confusion around database configurations.

**Additional context**
The generated markdown files should include:
- Overview of each database model
- Field descriptions and data types
- Relationships between models (if applicable)
- Example queries or usage scenarios

Look for existing CLI commands in the codebase to understand the structure. The tool needs to parse schema files (starting with Prisma) and generate markdown. Check how the project handles database configurations and model definitions. A good first step is to examine any existing documentation generation or schema parsing utilities.

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