v1.2.0

• The mark in front of a blocked row pulses instead of sitting still: the
  question mark and a quiet ring take turns in the same cell, about three
  quarters of a second each. Blocked is the one state that costs something to
  ignore, and it was the only event mark with no motion at all. Borrowed from
  Codex, which alternates [ ! ] with [ . ] in its terminal title while it
  waits for an answer.
• An agent's own blinking marker is dropped from the title — Codex writes
  [ ! ] / [ . ] into it while waiting. The row pulses its own mark for that
  state now, and two blinkers out of phase in one line is worse than either;
  the words after the bracket are kept. It also stops a title rewrite every
  second that said nothing new.
• The other halves of a split screen hang off the pane they were split from,
  the way a worktree's sessions hang off their checkout: one corner each, a
  grey one so the structure does not read louder than the row it holds. Panes
  sharing a tab also rank as one unit, so nothing unrelated lands between two
  halves of one screen.
• Fix the vendor colours 1.1.0 lost on every row below a group header. The rule
  matched the logo cell with equals, but an indented row's value carries a
  zero-width space and its indent in front of the glyph, so only a header's own
  row ever matched; it is contains now.
• A working row spins a twelve-spoke throbber from the icon font instead of a
  braille frame. Only the spoke widths change between frames, not the outer
  radius, so the shape turns without breathing. The plain-Unicode variant keeps
  the braille frames, and so does the merged JetBrains Mono build — it cannot be
  rebuilt here, it needs the upstream font as input.