Reproduce vite-21829 from its authentic engineer request.

Reproduce vite-21829 from its authentic engineer request.: a task in vite-selfbench (Harbor dataset). Fix development mode so runtime helpers emitted by Oxc always use the ESM Oxc runtime. Transformed application code that requires an Oxc runtime helper must load and execute successfully during…

The task

Fix development mode so runtime helpers emitted by Oxc always use the ESM Oxc runtime. Transformed application code that requires an Oxc runtime helper must load and execute successfully during development.

Part of dari-ai/vite-selfbench.