BINDINGS: list[BindingType] = [Binding(
'up',
'move_up',
'Up',
show=Key bindings for thread navigation, selection, deletion, and filter focus.
Arrows move the cursor, Page Up/Down jump by a visual page, Enter
selects the highlighted thread, Ctrl+D opens the delete-confirmation
overlay, Tab/Shift+Tab rotate focus through the filter input and
column toggle checkboxes, and Esc dismisses. All bindings use
priority=True so they take precedence over the embedded filter
Input and checkbox widgets; vim-style j/k bindings are
deliberately omitted because they would prevent typing those letters
into the always-focused filter input.