style: cargo fmt --all (S3+S4+S5+S7 follow-up)

V009 morphological tokenizer 작업 (S3 chunk + S4 backfill + S5
short_query_hint 제거 + S7 신규 tests) 의 형식 정리. 동작 변경 없음.

Spec: docs/superpowers/specs/2026-05-28-v0.20.x-korean-morphological-tokenizer-spec.md
Plan: docs/superpowers/plans/2026-05-28-v0.20.x-korean-morphological-tokenizer-plan.md (S11)

crates/kebab-app/tests/search_korean.rs

@@ -187,9 +187,8 @@ fn korean_morphological_mixed_english_korean_query() {
         hits.iter().map(|h| &h.doc_path.0).collect::<Vec<_>>()
     );
 
-    let hits =
-        kebab_app::search_with_config(env.config.clone(), common::lexical_query("최적화"))
-            .expect("search 최적화");
+    let hits = kebab_app::search_with_config(env.config.clone(), common::lexical_query("최적화"))
+        .expect("search 최적화");
     assert!(
         !hits.is_empty(),
         "'최적화' Korean morpheme must hit; got {:?}",