Add btop to the DevShelf database #4

?? Good First Issue: Add btop to DevShelf

We are welcoming contributors to add btop to the curated DevShelf directory!

?? Target File & Details:

• Target File: shelf/cli-tools.json
• Tool Name: btop
• Repository URL: https://github.com/aristocratos/btop
• Category: CLI & Productivity
• Primary Language: C++
• License: Apache-2.0
• Suggested Description:

  Resource monitor that shows usage and stats for processor, memory, disks, network and processes with a modern, responsive terminal UI.

??? How to Complete this Issue:

1. Fork this repository and clone your fork locally.
2. Open shelf/cli-tools.json and add the JSON entry to the array.
3. Run automated data checks:

   pnpm run validate
   npx tsx scripts/check-links.ts

4. Rebuild the README and web directory data:

   pnpm run build

5. Commit your changes (git commit -m "feat(shelf): add btop to shelf/cli-tools.json") and submit a Pull Request!

Need help? Feel free to ask questions in this issue thread or check our CONTRIBUTING.md.