ci: update showcase

[astrobot-houston]

This PR is auto-generated by a GitHub action that runs every Monday to update the Astro showcase with data from GitHub and NPM.

Sites added in this PR 🆕

• caffeineletter | home
• Optimize your work with a proactive AI assistant
• André Stafast
• Introducing Tract Stack | no-code website builder and content marketing platform

Sites that are maybe not built with Astro 🤔

We couldn’t detect that these sites were built with Astro. You might want to check manually.

cointracker.io

[netlify]

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Lighthouse	5 paths audited Performance: 99 (no change from production) Accessibility: 100 (no change from production) Best Practices: 95 (🟢 up 1 from production) SEO: 93 (no change from production) PWA: - View the detailed breakdown and full score reports

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[sarah11918]

Also merging these Showcase Friday scragglers to make it in to the monthly blog post! Again, not featured/highlighted.

No manual adjustments to any entries needed, but cointracker.io was again showing and it already exists as a www. So I've added it to the blocklist with a comment.