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-parse-pdf/tests/page_image.rs

@@ -1,7 +1,7 @@
 // crates/kebab-parse-pdf/tests/page_image.rs (신규)
 
-use lopdf::Document;
 use kebab_parse_pdf::extract_dctdecode_page_image;
+use lopdf::Document;
 
 // happy path — F1 fixture (DCTDecode JPEG passthrough)
 #[test]
@@ -11,7 +11,11 @@ fn f1_fixture_yields_dctdecode_jpeg_bytes() {
     let result = extract_dctdecode_page_image(&doc, 1).unwrap();
     let jpeg = result.expect("F1 의 page 1 이 DCTDecode image 보유");
     assert!(jpeg.starts_with(b"\xFF\xD8"), "JPEG magic missing");
-    assert!(jpeg.len() > 1000, "JPEG bytes too small (got {})", jpeg.len());
+    assert!(
+        jpeg.len() > 1000,
+        "JPEG bytes too small (got {})",
+        jpeg.len()
+    );
 }
 
 // negative path — F6 fixture (FlateDecode raw pixel — Ok(None))
@@ -20,5 +24,8 @@ fn flate_raw_fixture_yields_none() {
     let bytes = include_bytes!("fixtures/flate_raw.pdf");
     let doc = Document::load_mem(bytes).unwrap();
     let result = extract_dctdecode_page_image(&doc, 1).unwrap();
-    assert!(result.is_none(), "FlateDecode page 가 Ok(None) 반환 — DCTDecode-only v1 invariant");
+    assert!(
+        result.is_none(),
+        "FlateDecode page 가 Ok(None) 반환 — DCTDecode-only v1 invariant"
+    );
 }