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-image/examples/gen_smoke_png.rs

@@ -10,8 +10,7 @@ fn main() {
     let out = std::env::args()
         .nth(1)
         .expect("usage: gen_smoke_png <out.png>");
-    let img: ImageBuffer<Rgb<u8>, _> =
-        ImageBuffer::from_fn(100, 50, |_, _| Rgb([255, 0, 0]));
+    let img: ImageBuffer<Rgb<u8>, _> = ImageBuffer::from_fn(100, 50, |_, _| Rgb([255, 0, 0]));
     let mut buf = Cursor::new(Vec::new());
     img.write_to(&mut buf, image::ImageFormat::Png)
         .expect("encode PNG");