Inline the verdict header, and take the formatter's pass

clippy::print_literal on the results table header, and rustfmt's first
look at code whose author could not run cargo. The four constructs the
author flagged as risky -- scoped-thread lanes, a seventeen-argument
params!, is_some_and over a closure, a refutable let-else -- all compiled
untouched.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tools/bench/src/main.rs

@@ -331,7 +331,10 @@ fn collect(
     v.insert("catalog_filtered_ms".to_string(), open.filtered_ms);
     let ips = thumbs.images_per_second;
     v.insert("thumbnail_throughput_ips".to_string(), ips);
-    v.insert("thumbnail_per_image_p99_ms".to_string(), thumbs.per_image.p99);
+    v.insert(
+        "thumbnail_per_image_p99_ms".to_string(),
+        thumbs.per_image.p99,
+    );
     for row in exports {
         v.insert(row.key.to_string(), row.times.p99);
     }
@@ -472,8 +475,8 @@ fn print_verdict(
     }
     println!();
     println!(
-        "  {:<30} {:>12} {:>13} {:>12} {:>8}  {}",
-        "metric", "measured", "budget", "baseline", "drift", "verdict"
+        "  {:<30} {:>12} {:>13} {:>12} {:>8}  verdict",
+        "metric", "measured", "budget", "baseline", "drift"
     );
 
     let mut failures = Vec::new();
@@ -521,9 +524,7 @@ fn print_verdict(
                 "ok"
             });
         }
-        println!(
-            "  {key:<30} {measured:>12.2} {budget:>13} {recorded:>12} {drift:>8}  {verdict}"
-        );
+        println!("  {key:<30} {measured:>12.2} {budget:>13} {recorded:>12} {drift:>8}  {verdict}");
     }
 
     // A metric in the file that nothing measured is a harness that has drifted