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-cli/tests/cli_config_not_found.rs

@@ -2,15 +2,18 @@
 //! must fail with exit≠0 and error.v1 code=config_not_found (not silently fall
 //! back to XDG defaults).
 
-use std::process::Command;
 use serde_json::Value;
+use std::process::Command;
 
 fn kebab_bin() -> String {
     env!("CARGO_BIN_EXE_kebab").to_string()
 }
 
 fn parse_error_v1(stderr: &str) -> Value {
-    let last = stderr.lines().last().expect("expected error.v1 ndjson on stderr");
+    let last = stderr
+        .lines()
+        .last()
+        .expect("expected error.v1 ndjson on stderr");
     serde_json::from_str(last)
         .unwrap_or_else(|e| panic!("expected ndjson on stderr: {e}\nstderr={stderr}"))
 }
@@ -25,7 +28,11 @@ fn invalid_config_path_emits_error_v1_with_nonzero_exit() {
         .output()
         .expect("spawn kebab");
 
-    assert_ne!(out.status.code(), Some(0), "exit must be nonzero on missing --config");
+    assert_ne!(
+        out.status.code(),
+        Some(0),
+        "exit must be nonzero on missing --config"
+    );
     let stderr = String::from_utf8_lossy(&out.stderr);
     let v = parse_error_v1(&stderr);
     assert_eq!(v["schema_version"], "error.v1");
@@ -38,7 +45,13 @@ fn invalid_relative_config_path_emits_config_not_found() {
     // Bug #10 spec §6 R-1: relative path も cwd-relative で cover.
     let tmp = tempfile::tempdir().unwrap();
     let out = Command::new(kebab_bin())
-        .args(["search", "rust", "--config", "nonexistent-rel.toml", "--json"])
+        .args([
+            "search",
+            "rust",
+            "--config",
+            "nonexistent-rel.toml",
+            "--json",
+        ])
         .current_dir(tmp.path())
         .output()
         .expect("spawn kebab");