Files
dela de917a2fbd Harden \stgroup and tighten the callout budget (review follow-up)
- Bracket ink is part of the fit: \st@facebody drops -inkw/-inke extreme
  coordinates and \stface/\ststack register them with the enclosing
  group/col/row fit, so a group outline can no longer be crossed by a
  member's bracket arms
- \stlink inside \stgroup or \stcol is now a package error: sub-flow
  members never terminate a pending connector, so the arrow was dropped
  silently while the label still rendered
- \stgroup requires role= (explicit role=neutral for mixed groups) and
  must bind at least two members or one \stcol partition; a lone stack
  or face inside a group is a dirty-build warning
- lint: default budget is one \stcallout per figure; the
  allow-multiple-callouts directive relaxes it to one per band
- build.sh: clean-build hint no longer names hue budget (lint owns it)
- tests/group-callout.tex reworked: multi-member group with a bracketed
  member as a regression probe, single callout; new negative fixtures
  group-link, group-norole, group-single, callout-budget
- api.md, checklist.md, style.md, layout.md, SKILL.md updated to match
2026-08-05 17:03:14 +08:00

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TeX

% A group around a single object is decoration: the stack already reads as
% one composite. The package must reject this with a dirty-build warning.
\documentclass[border=2pt]{standalone}
\usepackage[en]{supertensor}
\stsetrole{x}{stTeal}
\stdim{T}{4}
\begin{document}\begin{tikzpicture}
\strow{R1}{T}
\stgroup[role=x]{G}
\ststack[role=x]{Q}{}{T}{T}{3}
\stgroupend
\strowend
\end{tikzpicture}\end{document}