- Each clip shows where its line came from (same-name .txt / .lab,
annotation file, or the file name, marked as a guess to check).
- Dropping a .txt / .lab / .list on a clip's line box fills it: a plain
file is the line, an annotation file is searched for that clip (same
rule as the node, including the name without the emotion part).
- .lab is an importable line file.
Tested: node tests/tts_setup_api.mjs (textFromFile added).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>