Read first, as the rule now requires: ui-prm-primitives.md,
ui-rat-layout.md, ui-screen-runtime.md -- they own the .prt/RATC/T8aD
stack but describe element names inside bundles, not where parts live.
A .prt IS a pak entry, under a LANGUAGE directory. Of 376 distinct
.prt names referenced on the disc, 241 resolve as archive entries --
220 under eng\ and jpn\, 38 under each of the other four. prbase.prt
resolves under all six; palogo1.prt under two.
All five pgmsg_*.prt resolve under nothing, across 15 prefixes that
include every language dir, so this is not the missing-prefix mistake
again.
A lead, refuted by its own control: four of the five have a same-stem
_sub.rat sub-bundle inside every per-language 2D pak, and pgmsg_update
has none -- but only 4 of 376 .prt stems have a _sub.rat, and
prbase.prt, which does ship as an entry, has none. Not the container
convention, not adopted.
An intermediate pass nearly reported 'the five appear only in the
manifest'; that was wrong because the token census was truncated by a
slice and the RATC hits were pgmsg_start_sub.rat, a longer token.
New artefact and regenerator; the other six regenerate byte-identical.
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