v0.3.0

Added

• Hovering a branch badge fades the rows its tip cannot reach
  (#17).
• Each submodule graph collapses to a narrow strip with its name, giving
  the commit rows their width back; the choice is kept per repository
  (#18).
• The commit menu, on a row or a graph node, copies the full commit id and,
  when the origin is on github.com or gitlab.com, copies or opens the
  commit's web page
  (#15).
• Each release carries Debian packages for amd64 and arm64, and a
  SHA256SUMS listing every release asset
  (ADR 0034).

Changed

• "Diff all" is a toggle: pressed while every file's diff is open, it closes
  the diff and brings the graph back
  (#19).
• A submodule graph's nodes behave like the main graph's: hovering shows the
  commit's hash, and the context menu copies its id and its web page on the
  submodule's own origin. The dashed pointer links no longer cover the node
  they end on.

Fixed

• Commit diffs and untracked files follow the diff attribute of
  .gitattributes, as git diff does: -diff and binary show as binary
  with no line counts, and diff shows as text
  (ADR 0033).
• The arm64 Linux binary starts on glibc 2.35 and later, Debian 12 and
  Raspberry Pi OS bookworm included; it needed glibc 2.39.