Convert site to fully static - remove runtime Contentful API calls

[Copilot]

Site was using ISR and SSR to sync content from Contentful at runtime (hourly in prod, every 30s in staging). Now fully static - content only fetched at build time.

Changes

Removed Incremental Static Regeneration

• Deleted revalidate from all getStaticProps
• Changed fallback: 'blocking' → fallback: false in all getStaticPaths
• Pages now generated once at build time only

Removed Server-Side Rendering

• Deleted /pages/preview/ directory and all getServerSideProps usage
• Preview functionality no longer available

Converted Runtime API Routes to Build-Time

• Created utils/sitemap.ts - generates sitemap during Next.js build
• Modified pages/api/sitemap.ts - now serves static file instead of generating dynamically
• Sitemap generation called from pages/index.tsx getStaticProps
• Restored sitemap rewrite in next.config.js

// Build now works like this:
// yarn build → next build
// During build, index.tsx getStaticProps calls:
await generateSitemap(); // from utils/sitemap.ts
// This generates public/sitemap.xml and RSS feeds
// Then /api/sitemap serves the static file

Cleanup

• Removed CONTENT_REVALIDATE_RATE constant
• Updated .gitignore to exclude generated sitemap/RSS

Impact

Breaking: Content updates now require full rebuild. No automatic runtime sync. Preview functionality removed.

Approach: Matches oxen-website implementation - sitemap generated during Next.js build, not as separate script.

Original prompt

This site needs to be made entirely static, it should not make any contentful api requests after it is built. A full manual rebuild should be required to update content.

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[Aerilym]

@copilot Update to do the same sitemap stuff as this PR on the oxen io site oxen-io/oxen-website#69

[Copilot]

@copilot Update to do the same sitemap stuff as this PR on the oxen io site oxen-io/oxen-website#69

Done! Updated to match oxen-website approach (commit 1d69cfc):

Changes:

• Moved sitemap generation from scripts/ to utils/sitemap.ts
• Now called from pages/index.tsx getStaticProps during Next.js build
• Restored pages/api/sitemap.ts to serve the static file
• Added sitemap rewrite back to next.config.js
• Removed separate build script

Build now works the same way as oxen-website - sitemap generated during Next.js build, not as a separate pre-build step.