d90415bffc59b765be8588942325cc798b9b59d6
- Updated folding actions and engine for more consistent behavior. - Added helper function `is_fold_hidden()` to check fold visibility state. - Improved gutter renderer to handle collapsible code blocks more reliably. - Refined tag handling for invisible folds to prevent desync issues. - Removed code fold Fix related entry in `TODO.md`.
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