Demonstrates the chunk optimizer regression introduced by #8371.

npm install rolldown@latest
node generate.mjs   # generates src/ with 200 routes, 50 services, 20 utils
node build.mjs       # builds and reports chunk count

bash compare.sh

The project has 1 main entry that dynamically imports 200 route modules. Routes share services and utilities with overlapping dependencies.

The chunk optimizer should merge shared modules into existing entry chunks when safe. PR #8371 made the circular dependency check too conservative, blocking legitimate merges and creating extra common chunks.

See PR #9049 for the fix.