lildax build fails from a fresh clone: Could not resolve "../pkg" (lightningcss)

Description

bun run --cwd packages/cli build --single fails on a fresh clone:

error: Could not resolve: "../pkg"
at node_modules/.bun/lightningcss@1.30.1/node_modules/lightningcss/node/index.js:17:28

lightningcss comes in through @opencode-ai/ui -> tailwind. Its node/index.js has a conditional require("../pkg") for the wasm variant, and Bun.build tries to resolve it even though that branch never runs (the napi package has no pkg dir). Release CI presumably builds under a configuration where this doesn't trigger; a local clone hits it every time.

Marking lightningcss as external in the compile step fixes it. The TUI never calls lightningcss at runtime, so the external is safe; if something ever did call it, the require would fail loudly instead of bundling wrong.

bun 1.3.14.

Plugins

none

OpenCode version

dev branch, 8a55ba75b5

Steps to reproduce

1. git clone https://github.com/anomalyco/opencode && cd opencode
2. bun install
3. bun run --cwd packages/cli build --single

Screenshot and/or share link

No response

Operating System

macOS (Darwin 25.5.0), arm64

Terminal

macos Terminal