Skillware spike: one integration path with `arpahls/skillware`

[rosspeili]

Problem

README “Related” points to Skillware as modular skills; OPSIIE has no concrete handshake (schema, loader, or single delegated command).

Goal

Time-boxed spike: ADR or docs/SKILLWARE_SPIKE.md describing one feasible integration (e.g. external process, JSON schema, or shared package)—go/no-go, no production coupling required in spike PR.

Acceptance criteria

• Documented outcome and next steps; link from README or docs index if kept.