Document JavaScript scripting (--run, Run Script...)
New page: scripting.md -- the two entry points, every qet.* method
(read the model, export/save, edit geometry with real undo, navigate/
message), three worked examples, exit codes, and the same limitations
the source's own class doc comment states, kept in sync deliberately.
Updates api_reference.md and cli_reference.md, both of which currently
say plainly that QET has no embedded scripting language -- true until
now. api_reference.md in particular carries a September 2026 correction
notice from when this page wrongly claimed Python scripting and a
plugin system existed; updated to state precisely what changed (a real
JavaScript engine) and what still has not (no plugin system, nothing
runs automatically, no project file can carry or trigger a script).
Status: describes PR #891, not yet merged into master. Every new/
changed section says so. Pushing now for discoverability rather than
waiting for merge, per explicit direction; drop the pending-PR notices
once #891 lands.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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