* fix: render whiteboard math via KaTeX instead of raw LaTeX text
* fix: recognize single-command LaTeX with a braced argument
The fallback missed valid single-command expressions (\vec{v}, \hat{x},
\overline{x}) whose command is not in COMMON_LATEX_COMMAND, because
commands.length < 2 returned null and they rendered as raw text. Now a
single command counts as math when it carries a braced argument, while
path-like prose (C:\temp) still has no braced argument and stays text.
Add regression tests for both cases.
* fix: exclude Windows drive paths before the common-LaTeX-command check
COMMON_LATEX_COMMAND.test() ran before any path-like check, so C:\alpha,
C:\theta and C:\pi were classified as LaTeX and rendered through KaTeX.
Return early for text starting with a drive letter, and add C:\alpha to the
Windows-path regression cases so a path whose segment matches
COMMON_LATEX_COMMAND is covered.
---------
Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Co-authored-by: wyuc <wang-yc24@mails.tsinghua.edu.cn>
* refactor: align widget actions with scene pipeline
* feat(edit): migrate legacy teacherActions off interactive content on load
The widget-actions pipeline no longer persists a teacherActions authoring
layer; playback reads only scene.actions. Add migrateInteractiveContent to
strip the dead field from existing documents as they load through migrateScene
(wired into all store/classroom load paths). Satisfies the #794 forward-migration
acceptance item.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix(generation): default widget_setState.state to {} when the LLM omits it
The removed TeacherAction->Action converter always defaulted state to {}.
Restore that guard in the structured-output parser so an action missing
state can't forward state: undefined into the widget iframe, where
SET_WIDGET_STATE handlers dereference it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* fix(edit): also strip nested widgetConfig.teacherActions in migration
Legacy WidgetConfig variants each declared their own teacherActions, so existing
documents can carry the dead field nested inside content.widgetConfig as well as
at the top level. Extend migrateInteractiveContent to drop both, preserving all
other widgetConfig fields.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
* feat(prompts): document stable widget-action selectors for diagram/game/viz3d
The interactive-actions prompt documented stable target selectors only for
procedural-skill and simulation widgets. Add the canonical selectors the
diagram / game / visualization3d content prompts actually emit (node IDs via
revealOrder; #zoom-in-btn / #canvas-container / #speed-slider / ...; #start-btn),
plus a rule to use widget_setState or a speech-only beat instead of guessing a
target when no stable selector is known (e.g. free-form code widgets). Hardens
against widget actions silently no-oping on non-existent selectors.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: 杨慎 <117187635+cosarah@users.noreply.github.com>
