Raise the declared minimums in pubspec.yaml to what our deps already
require: Flutter >=3.35.0 / Dart >=3.9.0 (was 3.19.0 / 3.5.0). alchemist
0.12 needs Flutter 3.32; Dart 3.9 first ships in Flutter 3.35, so 3.35 is
the binding floor. Pin the exact build toolchain in .fvmrc (Flutter
3.44.1).
Moving to the Dart 3.9 language level switches `dart format` to the new
"tall" style and enables two new lints. This commit is the resulting
mechanical churn, isolated from any behaviour change:
- whole-tree `dart format` reformat (tall style)
- `dart fix` for unnecessary_underscores + use_null_aware_elements
No runtime behaviour change; `make test` green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
T-205, the resolver foundation for Vim motions (dd, gg, dw, ciw) and
repeat counts (5j). KeymapBinding now holds an ordered chord sequence
(length 1 for the common single-chord case); `keys:` parses a space-
separated spec into that sequence (D-82). Keymap.resolve keeps the
single-chord fast path; a new stateless Keymap.match answers
exact/prefix/none for a pending buffer.
SequenceMatcher wraps that query with a pending buffer, a repeat-count
prefix (leading digits, 0 excluded since it's the line-start motion),
the d-vs-dd timeout case (flush fires the buffered exact), and broken-
sequence recovery (discard, restart on the last chord). It is headless —
no keyboard reads, no event swallowing — so the editor (T-206) can drive
it from Focus.onKeyEvent and act on the result.
Also drops a stray unused import in the Vim indicator test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>