:sig
bool unit_compile(String path = "")

:params
path : optional UCE unit path. If empty, recompiles the current executing unit.
return value : `true` when the host compiler accepted and compiled the unit

:see
>runtime
unit_info
units_list
unit_call

:content
Triggers a manual recompile of a UCE compilation unit through the host membrane.

If `path` is relative, it is resolved by the host unit resolver. The function returns whether compilation succeeded; it does not return or expose a native `SharedUnit*` to wasm units.

Related:

- PHP: template compilation or preloading steps that generate cached PHP artifacts
- JavaScript / Node.js: build-step compilation, bundling, or ahead-of-time template transforms
