Astro 7.0

Astro 7.0 is a major performance-focused release delivering 15–61% faster build times. Key changes include: a new Rust-based .astro compiler replacing the previous Go compiler, a Rust-powered Markdown/MDX pipeline via the new Sätteri processor, queued rendering now stable as the default engine, and an upgrade to Vite 8 with the Rolldown bundler (10–30x faster than Rollup). Advanced Routing introduces a src/fetch.ts entrypoint for full control over the request pipeline, compatible with Hono middleware. Route caching graduates from experimental to stable, with new CDN cache providers for Netlify, Vercel, and Cloudflare. AI agent support is improved with background dev server mode (astro dev --background), automatic agent detection, and structured JSON logging for machine-readable output.