perf(dev): Enable V8 compile cache for Node.js 22+
Add support for V8 compile cache to speed up subsequent dev server starts:
- Enable module.enableCompileCache() in parent process for Node.js 22+
- Pass NODE_COMPILE_CACHE env var to child process for automatic caching
- Cache directory: .next/cache/node-compile-cache
- Can be disabled via NEXT_DISABLE_COMPILE_CACHE=1
This is a forward-compatible optimization that will automatically benefit
users on Node.js 22+ with no changes required.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
