Add agenttrace

[luoyuctl]

Summary

• Add agenttrace as a reviewed Agent observability / Terminal agents entry.
• Regenerate README from the structured metadata.

Data Sources

• Official sources used for new or changed tool metadata.
• Uncertain metadata marked as not specified.
• Descriptions are factual and neutral.

Checks

• npm run sort
• npm run generate
• npm test

[github-actions]

Thanks for your first pull request to Awesome AI Devtools. Please make sure tool metadata comes from official sources and that npm run sort, npm run generate, and npm test pass.

[yeaight7]

LGTM! Thank you for the contribution <3