mkcapsule.c already ingests arbitrary non-.4th files as raw byte blobs
(validate_forth_blocks only applies to .4th filenames), so no hex/base64
text-encoding or tool changes are needed -- corrects the design premise
in FABRIC.md's 4.3.7b item text (see the FABRIC.md correction note this
commit carries). ttf_load_from_capsule() resolves the font capsule by
name, validates its content hash, and points ttf_font_t at the capsule
arena bytes directly, zero-copy.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
