Support Kitty and SIXEL input and output with grid-resident image layers, history and copy-mode integration, text fallback rendering, and damage-rectangle redraws.
Consolidate the image work through 250f96b4b onto the redraw-damage-rectangles-new base, excluding the superseded redraw implementation and its historical merges. The original history is preserved in backup/4902-image-support-before-master-rebase-20261003.
* refs/remotes/tmux-openbsd/master:
Add commands to copy mode to select, pipe and open OSC 133 command output, from Michael Grant.
Fix bugs with empty panes and load-buffer -w, GitHub issue 5701 from Alexandre Fiori.
Track allocations in yacc to avoid leaking when parsing commands, GitHub issue 5632 from Jeong, Heon.
Fix commands being lost when chained with assignment, GitHub issue 5702 from Jeong, Heon
* refs/remotes/tmux-openbsd/master:
Show match count in copy mode, GitHub issue 5399.
Add window-default-command option to override default-command per window, from Meriel Sartha Mittelbach.
Do not change active pane if joining a pane to the same window. Reported by David le Blanc.
* refs/remotes/tmux-openbsd/master:
Parse terminal replies with keys and apply them only when finished, so that a preceding Escape can be handled correctly. GitHub issue 5676 from Joan Fabrégat.
Use the .Cm macro for keywords used as arguments to commands and options, mostly replacing dubious use of .Ic, but a few others as well; nicm@ agrees with the general direction.
* refs/remotes/tmux-openbsd/master:
Add table for destroy-unattached.
Do not allow drags started on status line to trigger pane key bindings, GitHub issue 5692.
* refs/remotes/tmux-openbsd/master:
Improve text about status lines, GitHub issue 5677.
Redraw selections after scrolling to line boundaries, GitHub issue 5689 from bugreporter23 at gmail dot com.
* refs/remotes/tmux-openbsd/master:
Do not always perform environment variable assignments inside %else, GitHub issue 5688 from Tushar Muralidharan.
Check format time in format_skip1 before the loop as well.
