v0.8.0

Added

• Drive the review loop from the keyboard. ? lists the map: j/k step
  through feedback, o jumps to a note's anchor, r replies, e resolves, n
  starts a note, S hands the review to the agent; ]/[ step files, f
  jumps to one, z/Z fold, x marks viewed, a annotates the current file;
  </> walk diff rounds and snapshots, \ toggles side-by-side. Every
  shortcut fires a control that's already on screen, under that button's own
  disabled condition. Marking a line range stays a mouse drag.
• The jump-to-file picker takes the keyboard: ↑/↓ (or Ctrl-p/Ctrl-n) move
  the selection and Enter opens it.
• Keyboard focus is visible. Tabbing through the UI now shows a focus ring.

Changed

• The browser demo now shows side-by-side diffs and expand-context, so both
  can be tried without installing anything.

Fixed

• Selecting across a side-by-side diff no longer puts blank lines into the
  quote where one column had fewer lines than the other. Since the quote is what
  re-anchoring searches for, those blanks were not cosmetic.
• The two columns of a side-by-side diff stay vertically aligned across
  expandable gaps; each one drifted them a quarter line apart.
• Dragging the line gutter now caps the quote the way a text selection
  already did — a 40-line drag stored a 40-line quote, which is exactly what
  re-anchoring relocates worst.
• Jumping to a feedback centers its line instead of always landing 30% down
  the pane.
• The current-file highlight — in the file browser and the jump-to-file
  picker — is right on open and while you scroll. It was picked against a hidden
  8px line rather than where a header actually pins, which on a phone could
  highlight a file behind the toolbar, and on opening a review it marked no file
  at all until you scrolled.

Removed

• Releases no longer ship a SHA256SUMS manifest — GitHub publishes a
  sha256 digest for every release asset, and a second copy is a second thing
  that can disagree.