chore: adopt Dart 3.9 toolchain — honest floor + tall-style reformat (T-353)

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>
This commit is contained in:
2026-06-11 12:11:53 +02:00
co-authored by Claude Opus 4.8
parent bcea5f15b7
commit 6d0ebab721
444 changed files with 7587 additions and 12849 deletions
+6 -2
View File
@@ -37,8 +37,12 @@ coverage_floor: 95
# flutter_channel: stable
environment:
sdk: ">=3.5.0 <4.0.0"
flutter: ">=3.19.0"
# Honest minimums (not aspirational floors). Drivers: alchemist 0.12 needs
# Flutter >=3.32; markdown 7.3.1 needs Dart ^3.9.0, and Dart 3.9 first ships
# in Flutter 3.35 — so 3.35 is the binding floor. Exact toolchain is pinned
# in .fvmrc (T-353).
sdk: ">=3.9.0 <4.0.0"
flutter: ">=3.35.0"
dependencies:
flutter: