The update check ran at most once a day and only printed a line after the
TUI exited. Now the registry is asked on every start (in the background,
3 s timeout, no cache) and the result reaches the TUI as a message.
With a newer release, the footer shows `q quit and update to vX` right of
help and quit, on a highlighted background (Theme.Highlight). `q` quits
and `main` installs the release once the terminal is restored, sharing
the code of `submarine update`; plain quit moves to `Q`, ctrl+c never
updates.
Drop LatestCached and CheckInterval. Add D27 and F58.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
c copies the absolute directory of the selected submodule via OSC 52.
Keys are grouped into navigation (footer left), global (footer right)
and submodule (detail pane palette, footer if the pane can't show it).
Adds a key reference table to the UX guide.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
simonfrankenandClaude Sonnet 5.5