--output parsed on create (urfave/cli v3 cascades ancestor flags
down to subcommands) but was never read: the action always printed
glamour markdown, embedding the PR URL as an OSC 8 hyperlink that
breaks consumers scraping piped stdout.
Mirror the detail-command precedent (cmd/pulls.go RunPullsDetails):
task.CreatePull now returns the created PR and the cmd layer switches
on --output, emitting lean JSON (index, title, url, state, base,
head). Without the flag the output stays byte-identical, as the same
print.PullDetails call just moved to its callers. The agit flow is
rejected explicitly when combined with --output, since it creates
the PR via git push and has no object to print.
Signed-off-by: Danilo Sousa <code@danilosousa.net>
