Grid: App::cmd_context counted visible_cols from term_width while
draw_content gave the grid term_width minus the 32-column side panel, so
with any panel open the cursor was scrolled past the last drawn column.
viewport::grid_width, reached through App::grid_width, is now the one
answer: draw_content splits on it and the keypress path counts on it.
Tile bar: the scroll measured from the end of the prefix while the draw
began one column later, two once scrolled (the left arrow), so the
selected tile could be dropped. tiles_left(start) is now where both the
scroll (first_tile) and the draw begin.
The grid defect dates from b5418f2e; it became the launch state when
50e4a372 opened the category panel by default, which is why it read as
a regression. Mixed-width columns still lose the cursor with no panel
open: improvise-gtn7.2. Reasoning: context/code/tui.md.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VdfEGXA7aJ6ftMsCc9PJze
Edward Langley
241cc5f384