PR #1328 (merged in the prior commit) correctly injects title/type/tags
into the YAML frontmatter that buildTranscriptPage already prepends. But
buildArtifactPage emits raw markdown without frontmatter, so design-docs,
learnings, and builder-profile-entries were landing in gbrain with empty
title/type/tags. Add the no-frontmatter wrap branch so artifact pages get
the same metadata the inject branch provides for transcripts.
Also bring in gbrainAvailable()'s --help probe (originally proposed in
PR #1341 by Alex Medina), with the regex tightened from /(^|\s)put(\s|$)/m
to /^\s+put\s/m. Anchoring on the indented subcommand format gbrain's
help actually uses keeps the probe from matching "put" appearing as
prose in help text, while still failing fast with one clean error if a
future gbrain renames or removes the put subcommand.
Updates the V1.5 NOTE doc block at the top of the file to describe the
current put-via-stdin shape rather than the legacy put_page flag form.
Co-Authored-By: Alex Medina <oficina@puntoverdemc.com>
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