chore: seed 토큰 갱신 + solid 배지 제거 (감사 반영)

lib/widgets/dk_badge.dart

@@ -13,27 +13,26 @@ enum DkTone { neutral, primary, success, warning, danger, info, violet }
 }
 
 /// 디자인 시스템 뱃지. 프로토타입 `Badge`: padding 3×9, radius 8, 12/600.
-/// [solid]이면 fg 배경 + 흰 글자.
+/// 톤은 항상 subtle 배경 + Fg 텍스트(대비 게이트 보장 조합). 과거 solid 변형(톤색
+/// 배경 + 흰 글자)은 다크 앰버 위 대비 미달 경로라 제거했다(2026-07-05 감사).
 class DkBadge extends StatelessWidget {
   const DkBadge(
     this.label, {
     super.key,
     this.tone = DkTone.neutral,
     this.leading,
-    this.solid = false,
   });
 
   final String label;
   final DkTone tone;
   final Widget? leading;
-  final bool solid;
 
   @override
   Widget build(BuildContext context) {
     final DkTokens t = DkTheme.of(context);
     final colors = dkToneColors(t, tone);
-    final Color bg = solid ? colors.fg : colors.bg;
-    final Color fg = solid ? t.onPrimary : colors.fg;
+    final Color bg = colors.bg;
+    final Color fg = colors.fg;
 
     return Container(
       padding: const EdgeInsets.symmetric(

pubspec.lock

@@ -709,7 +709,7 @@ packages:
     description:
       path: "."
       ref: HEAD
-      resolved-ref: "1910eca50b7a64b1ebbf80c10fcc3eb30487f864"
+      resolved-ref: "861b9bd00fc0e35f7d01901ce97a12fb028b55f3"
       url: "https://github.com/ieoseo/seed-design.git"
     source: git
     version: "0.1.0"

test/theme_contrast_test.dart

@@ -85,6 +85,32 @@ void main() {
         expect(t.byKey('onPrimary'), t.onPrimary);
         expect(_contrast(t.onPrimary, t.primary), greaterThanOrEqualTo(4.5));
       });
+
+      test('본문·보조 텍스트는 표면 4종 위 4.5:1 이상(seed 게이트 미러)', () {
+        final Map<String, Color> fgs = <String, Color>{
+          'fg': t.fg,
+          'fgMuted': t.fgMuted,
+          'fgSubtle': t.fgSubtle,
+        };
+        final Map<String, Color> bgs = <String, Color>{
+          'bg': t.bg,
+          'bgSubtle': t.bgSubtle,
+          'bgPress': t.bgPress,
+          'page': t.page,
+        };
+        for (final MapEntry<String, Color> f in fgs.entries) {
+          for (final MapEntry<String, Color> b in bgs.entries) {
+            final Color fg = _composite(f.value, b.value);
+            final double ratio = _contrast(fg, b.value);
+            expect(
+              ratio,
+              greaterThanOrEqualTo(4.5),
+              reason:
+                  '$label ${f.key} on ${b.key} = ${ratio.toStringAsFixed(2)}:1',
+            );
+          }
+        }
+      });
     });
   }