add periodic-tui

[cowboycodr]

Description

A brief description of what you're adding/changing.

Type of Contribution

• New resource (tool, tutorial, etc.)
• Update existing entry
• Fix broken link
• Improve documentation
• Other (please specify)

Resource Details

• Resource Name:
• Category:
• Link:
• Description:

Checklist

• I have read the Contributing Guidelines
• I have tested all links and they work
• The resource is relevant to OpenTUI
• The description is clear and concise
• I have followed the formatting guidelines
• I have added the resource to the appropriate section
• I have maintained alphabetical order within the section
• The resource meets the quality standards outlined in CONTRIBUTING.md

Additional Notes