Reproduce vite-config-temp-cache from its authentic engineer request.

Reproduce vite-config-temp-cache from its authentic engineer request.: a task in vite-selfbench (Harbor dataset). Fix Vite's bundled config loader so transient ESM config activity no longer creates unstable Vite Task cache inputs. The loader writes generated ESM configs beneath node…

The task

Fix Vite's bundled config loader so transient ESM config activity no longer creates unstable Vite Task cache inputs. The loader writes generated ESM configs beneath `node_modules/.vite-temp` and imports them with native Node ESM; Node reads the containing temporary directory during module resolution. Ignoring only…

Part of dari-ai/vite-selfbench.