Replace `Effect.promise(() => SystemPrompt.skills(...))` and
`Effect.promise(() => SystemPrompt.environment(...))` with direct
effectful calls. `environment` is now a plain sync function (the async
Ripgrep.tree call was dead code behind `&& false`). `skills` is now an
`Effect.fn` that takes the Skill service as a parameter.
Kit Langton
30edf5aa42