test(app-iced): 三处测试调用点补 forced=None（M285 形参同步）

section_columns / settings::view / appearance::section 各加了 forced 形参，
测试里的调用点必须同步（同行情改，不增行；frame.rs 用一次局部绑定避免折行）。
frame.rs 393 → 394 行。产品逻辑零改动。

crates/app-iced/src/pages/appearance/tests.rs

@@ -129,7 +129,7 @@ fn appearance_texts(lang: Lang, case: Case) -> Vec<(Key, String)> {
     probe::take();
     probe::take_rendered();
 
-    let _tree = super::section(&ui, &state, lang);
+    let _tree = super::section(&ui, &state, lang, None);
 
     let mut texts: Vec<(Key, String)> = probe::take()
         .into_iter()

crates/app-iced/src/pages/settings/frame.rs

@@ -372,8 +372,9 @@ mod no_stray_empty_state {
     fn the_form_holds_exactly_one_column_per_group() {
         let ui = ui();
         let update = Update::default();
+        let language = Language::default();
 
-        let narrow = section_columns(&ui, None, states(), Language::default(), &update);
+        let narrow = section_columns(&ui, None, states(), language, &update, None);
         assert_eq!(
             narrow.len(),
             GROUPS.len(),
@@ -381,7 +382,7 @@ mod no_stray_empty_state {
         );
 
         for index in 0..GROUPS.len() {
-            let single = section_columns(&ui, Some(index), states(), Language::default(), &update);
+            let single = section_columns(&ui, Some(index), states(), language, &update, None);
             assert_eq!(
                 single.len(),
                 1,

crates/app-iced/src/pages/settings/tests/appearance_section.rs

@@ -161,6 +161,7 @@ fn appearance_texts(lang: Lang) -> Vec<(Key, &'static str)> {
             effective: lang,
         },
         &update,
+        None,
     );
 
     probe::take()