event-catalog/eventcatalog @eventcatalog/core@3.34.0 on GitHub

f2f4a48: Upgrade Astro and related integrations to the latest 6.3.x line (astro 6.3.1, @astrojs/check 0.9.9, @astrojs/markdown-remark 7.1.1, @astrojs/mdx 5.0.4, @astrojs/node 10.1.0, @astrojs/react 5.0.4). Align @types/react / @types/react-dom on v19 so type-checking works across the workspace. Replace getEntry('customPages', …) with a cached getCollection lookup in the custom-documentation nav builder to avoid Astro's noisy slug deprecation accessor firing thousands of times per build.