A hint's MoveRecord words are upper-cased on decode (for the move-history view),
whereas an EvalResult keeps the backend's lower case. Seeding the move preview
from the hint verbatim flipped the score caption to upper case and nudged its
height. Lower-case the words in previewFromHint so the caption reads the same
as the evaluate path it replaces.
Taking a hint auto-placed the suggested tiles and then called recompute(),
which round-trips a debounced evaluate for that exact placement. The hint is
the engine's own top-ranked, fully scored legal move, so its move already
carries the score, words and direction an evaluate would return — the second
call was pure duplicate work and added a visible disabled->enabled flicker on
the submit button over slow links.
Seed the move preview directly from the hint move via previewFromHint and
cancel any pending evaluate timer so a stale one cannot clobber it. A later
manual edit re-arms recompute() as before, so rearranged tiles are re-evaluated
normally. Client-only; no backend, wire or schema change.
Ilia Denisov