Align CI tooling with runtime targets (Node >=22 / Bun) #2
Description
Problem
The shared CI workflow uses pnpm and Node 18/20/22, while packages declare runtime targets of Node >=22 and Bun >=1.3. This can hide runtime-specific issues and diverge from the supported toolchain.
Evidence
- .github/workflows/ci.yml uses pnpm and a Node matrix including 18.x/20.x.
- Package manifests in omniscript-core/converters/site declare Node >=22 and Bun >=1.3.
Expected
- Align CI to the supported runtime (Node 22+ and/or Bun).
- If legacy Node versions are intentionally supported, update package engines/docs accordingly.
Acceptance Criteria
- CI matrix matches declared engine support.
- Build/test steps use the intended package manager (Bun or pnpm) consistently.