Bun command not found during ./setup

[dreamwing]

When running the ./setup script, the execution fails with the following error:

./setup: line 32: bun: command not found

It seems that bun is a required dependency but is not automatically installed or checked by the script.

Users need to manually install bun to proceed. The recommended installation method is:

curl -fsSL https://bun.sh/install | bash

Could you please add a check for bun in the setup script or include it in the documentation? Thanks!