style: cargo fmt --all (round 4 ingest log feature follow-up)

Phase C4 executor 의 마지막 `fix(test): clippy + fmt fixes` commit 이
test file 부분만 fmt 적용. workspace 전체 fmt 누락 발견 → cargo fmt --all
적용. 모든 import alphabetical reorder + line wrapping 정합.

추가 untracked artifact 동시 commit:
- docs/superpowers/specs/2026-05-28-v0.20-ingest-log-spec.md (491 line, ACCEPT)
- docs/superpowers/plans/2026-05-28-v0.20-ingest-log-plan.md (616 line, ACCEPT)

workspace test: 1370 passed / 0 failed / 50 ignored, ingest_log_smoke green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/kebab-app/tests/twin_files_idempotent.rs

@@ -43,9 +43,7 @@ fn twin_files_second_ingest_is_unchanged() {
     let items = first.items.as_ref().expect("items must be present");
     let twin_items: Vec<_> = items
         .iter()
-        .filter(|i| {
-            i.doc_path.0.ends_with("__init__.py")
-        })
+        .filter(|i| i.doc_path.0.ends_with("__init__.py"))
         .collect();
     assert_eq!(
         twin_items.len(),
@@ -63,8 +61,14 @@ fn twin_files_second_ingest_is_unchanged() {
     // Second ingest — same files, same content → both must be Unchanged.
     let second = ingest_with_config(env.config.clone(), env.scope(), false)
         .expect("second ingest must succeed");
-    assert_eq!(second.errors, 0, "second ingest: no errors; report={second:?}");
-    assert_eq!(second.new, 0, "second ingest: no new docs; report={second:?}");
+    assert_eq!(
+        second.errors, 0,
+        "second ingest: no errors; report={second:?}"
+    );
+    assert_eq!(
+        second.new, 0,
+        "second ingest: no new docs; report={second:?}"
+    );
     assert_eq!(
         second.updated, 0,
         "second ingest: no updated docs (twin-file bug would set this to 2); report={second:?}"