Rule engine integration and UI improvements

[rjarman]

Description

This PR introduces several enhancements to the node management system and documentation:

1. Implements dynamic node management with new node types and NodeForm integration
2. Updates the flow engine controller to handle node_template_id from requests
3. Enhances CrewAI node configurations with new fields
4. Adds documentation for PostgreSQL database setup
5. Includes various UI configuration updates and code refactoring

Related Issue

• Fixes Rule Engine Integration and UI Improvements #3

Type of Change

• New feature (non-breaking change which adds functionality)
• Documentation update
• Code refactoring (no functional changes)

Checklist

• I have read the CONTRIBUTING.md document
• My code follows the code style of this project
• I have added tests that prove my fix is effective or that my feature works
• I have updated the documentation accordingly
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

Testing

Screenshots

Additional Context

This PR focuses on improving the node management system by:

• It's just focused on the MVP in an unoptimized way
• Add just a simple UI