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- Ctrl-X prefix chord: dispatch_ctrl_x_followup routes 9 follow-up keys (d/j/c/o/l/s/v/a/!) to their respective commands - Compare Dirs (C-x d): size-only mode matching MC behavior, marks files that differ between left and right panels - SymlinkRelative (C-x s): creates symlinks with relative target paths via relpath_from() helper - SymlinkEdit (C-x v): reads existing symlink target, opens edit dialog with for_editing() constructor, removes old link before recreating - ScreenList/EditHistory/FilteredView dialogs wired through dispatcher, handle_dialog_key, apply_finished_dialog, and render - Editor format paragraph (Alt-P): wrap_paragraph + paragraph_range + reformat_paragraph_at in format.rs, 29 unit tests - Viewer growing buffer: toggle_growing/check_growing for tail -f mode, detects file growth and appends new content 946 tests pass (default), 964 (all features), 0 failures