v1.5.1

v1.5.1 (2026-10-08)

• Typing and answering land in the same frame now. The evaluation
  idle ran at a priority a full frame behind the echo paint (the
  structural cause of a slight split between typing and seeing),
  and per-burst cost had crept to ~90 ms on the welcome sheet.
  Three fixes: evaluation moved onto the view's frame clock (update
  phase, so answers paint with the text), knows_unit probes are
  memoized per process (the stress sheet's 24 prose words cost
  33 ms in master-clone probes alone; now 0.12 ms for the whole
  sheet), and the re-pass flag only fires when a missed reference
  points at a line that can still answer (dangling refs stop
  forcing a wasted confirm pass). The outline menu is no longer
  rebuilt per keystroke, and error highlights skip rebuilds when
  the error set is unchanged.