Top: a hyper-thread wears its core's temperature, and the columns line up

The process table carries each logical CPU's core id from sysfs topology; a row with
no reading still has the temperature cells, so the % column is one column.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

internal/space/walk.go

@@ -100,7 +100,7 @@ func Walk(ctx context.Context, roots []string, progress func(Progress)) (*Node,
 	if len(trees) == 0 {
 		return root, os.ErrNotExist
 	}
-	workers := 16
+	workers := 32
 	var wg sync.WaitGroup
 	for i := 0; i < workers; i++ {
 		wg.Add(1)