hst: expose daemon as fs entry

This is slightly counterintuitive, but it turned out well under this framework since the daemon backs its target file.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/outcome/spcontainer.go

@@ -382,6 +382,10 @@ func (p opsAdapter) Link(target *check.Absolute, linkName string, dereference bo
 	return opsAdapter{p.Ops.Link(target, linkName, dereference)}
 }
 
+func (p opsAdapter) Daemon(target, path *check.Absolute, args ...string) hst.Ops {
+	return opsAdapter{p.Ops.Daemon(target, path, args...)}
+}
+
 func (p opsAdapter) Root(host *check.Absolute, flags int) hst.Ops {
 	return opsAdapter{p.Ops.Root(host, flags)}
 }