the goose recipe renderer emitted the prompt body under a bare '|' block
scalar. yaml infers a plain block scalar's indentation from its first
non-empty line, so a command body whose first line is itself indented (a
markdown code block, a nested list item) made the parser expect that deeper
indent for the whole block and reject the later, shallower lines - the
generated .goose recipe then failed to parse.
use an explicit '|2' indentation indicator so the block is always read at
2 spaces regardless of the body. added a regression test that round-trips
an indented-first-line body through the yaml parser.
d3e7b06fa7