Conductor/Superset clone a bare worktree with no node_modules. The
legacy .superset/setup.sh ran bun install; cmdSetup did not, so
drizzle-kit generate (which executes the temp .ts drizzle config via
NODE_OPTIONS=--import tsx) failed with ERR_MODULE_NOT_FOUND for tsx. Now
cmdSetup runs bun install at the very top — Bun no-ops when lockfile
matches, so the cost on repeat runs is negligible.