Add config options, formatting updates, update packages

[Hankanman]

I found this project a few months ago and have been maintaining my own fork of it with significant updates and improvements. I thought I should create a PR and push back to the original project if you are interested, below is a summary of the changes:

Added

• New output formats and options:
  • LLM-optimized JSON format for AI consumption
  • Separate folder and fileName configuration options
  • Ability to generate both markdown and JSON outputs simultaneously
• Entity Relationship Diagrams using Mermaid.js
• Function documentation support:
  • Full function signatures
  • Function definitions
  • Language and volatility information
• Row Level Security (RLS) policy documentation:
  • Policy definitions
  • USING expressions
  • WITH CHECK expressions
  • Role assignments
• Enhanced schema documentation:
  • Table and column comments
  • View definitions and comments
  • Default values for columns
• Environment variable support:
  • .env and .env.local file support
  • Database connection string via DB_STRING
• Table of Contents generation
• Pure markdown mode (no HTML)

Changed

• Replaced single output option with folder and fileName for more flexibility
• Improved configuration handling with better defaults
• Enhanced CLI argument support for all configuration options

[CLAassistant]

All committers have signed the CLA.