Adds a '🔒 Protected (text node)' toggle. When on, the DOM editor is a free text
box whose value mirrors into the hidden stored_text widget; the node outputs that
text and ignores upstream (no pause, socket events ignored). Persists via the
protected + stored_text widgets; restored on configure. stored_text is single-line
so it hides cleanly (pool_id trick).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
protected=True makes run() emit stored_text and ignore upstream with no pause;
IS_CHANGED caches on stored_text when protected (NaN otherwise). text input is
now optional so the node can run standalone.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ethanfel