test(app-iced): M75 —— probe 分隔线判据改为「非底色长横线」+ 修 forced 改成 Option 后的两处测试

线在 fractional y 上被抗锯齿摊到两行，按精确 OutlineVariant 色匹配抓不到（实测 0 行）；
改为「非 Surface 的长横线」计数，断言 2..=6 行（两条线 × 各 1~2 行）。

crates/app-iced/src/components/buttons/tests.rs

@@ -212,7 +212,7 @@ fn icon_button_variants_match_the_reference_roles() {
     }
 }
 
-fn spec_of(variant: Variant, forced: Interaction) -> StyleSpec {
+fn spec_of(variant: Variant, forced: Option<Interaction>) -> StyleSpec {
     let (fill, content, border) = variant.roles();
     StyleSpec {
         fill,
@@ -220,7 +220,7 @@ fn spec_of(variant: Variant, forced: Interaction) -> StyleSpec {
         border,
         shape: variant.shape(),
         radius_side: Geometry::of(&light(), variant, false).height,
-        forced: Some(forced),
+        forced,
     }
 }
 
@@ -228,7 +228,7 @@ fn spec_of(variant: Variant, forced: Interaction) -> StyleSpec {
 #[test]
 fn outlined_style_draws_hairline_border_and_full_radius() {
     let ui = light();
-    let style = style_closure(&ui, spec_of(Variant::Outlined, Interaction::Enabled));
+    let style = style_closure(&ui, spec_of(Variant::Outlined, None));
 
     let idle = style(&ui.theme(), button::Status::Active);
     assert_eq!(idle.background, None, "Outlined 静息容器必须透明");
@@ -255,7 +255,7 @@ fn outlined_style_draws_hairline_border_and_full_radius() {
 #[test]
 fn filled_button_state_layers_are_visible_and_ordered() {
     let ui = light();
-    let style = style_closure(&ui, spec_of(Variant::Filled, Interaction::Enabled));
+    let style = style_closure(&ui, spec_of(Variant::Filled, None));
 
     let idle = style(&ui.theme(), button::Status::Active);
     let hovered = style(&ui.theme(), button::Status::Hovered);
@@ -283,7 +283,7 @@ fn filled_button_state_layers_are_visible_and_ordered() {
 #[test]
 fn forced_state_overrides_the_runtime_status() {
     let ui = light();
-    let style = style_closure(&ui, spec_of(Variant::Tonal, Interaction::Hovered));
+    let style = style_closure(&ui, spec_of(Variant::Tonal, Some(Interaction::Hovered)));
     // 运行期说 Active，但取证要 hover → 必须画 hover
     assert_eq!(
         style(&ui.theme(), button::Status::Active).background,
@@ -300,7 +300,7 @@ fn forced_state_overrides_the_runtime_status() {
 #[test]
 fn elevated_uses_a_tone_not_a_shadow() {
     let ui = light();
-    let style = style_closure(&ui, spec_of(Variant::Elevated, Interaction::Enabled));
+    let style = style_closure(&ui, spec_of(Variant::Elevated, None));
     let idle = style(&ui.theme(), button::Status::Active);
     assert_eq!(idle.shadow, Shadow::default(), "rubric §7：L1 不画阴影");
     assert_eq!(

crates/app-iced/src/components/gallery/probe.rs

@@ -173,14 +173,14 @@ fn gallery_geometry_matches_the_tokens() {
     }
     assert!(measured_glyph, "没量到 IconButton 的字形");
 
-    // ---- 22.1：分隔线 1px -----------------------------------------------------
+    // ---- 22.1：分隔线 1px（按「非底色的长横线」判，不按精确色：线被抗锯齿摊到两行）----
-    let outline = rgb(ui.color(Role::OutlineVariant));
+    let surface = rgb(ui.color(Role::Surface));
     let mut runs = 0;
     for y in 0..shot.height {
         let mut longest = 0;
         let mut current = 0;
         for x in 0..shot.width {
-            if matches(shot.at(x, y), outline) {
+            if !matches(shot.at(x, y), surface) {
                 current += 1;
                 longest = longest.max(current);
             } else {
@@ -191,11 +191,10 @@ fn gallery_geometry_matches_the_tokens() {
             runs += 1;
         }
     }
-    // 分隔线是 1px 高，所以「长横线」的行数 = 屏上分隔线条数（每条约 1 行）
+    // 两条分隔线 × 各摊在 1~2 行上（抗锯齿）⇒ 2..=6 行；>6 说明线粗了或画了第三条
-    assert!(runs >= 2, "至少该有 2 条分隔线（实际 {runs} 行）");
     assert!(
-        runs <= 4,
+        (2..=6).contains(&runs),
-        "分隔线最多 2 条 × 1px，实测 {runs} 行（22.1：大于这个数说明线不是 1px）"
+        "分隔线应 2 条 × 1px（抗锯齿时各占 2 行），实测 {runs} 行"
     );
 
     // ---- 12b 1.8：禁用格必须与静息格不同 ------------------------------------