fix(run): force $sorted to array to avoid char indexing on single tool

When only one tool exists, the sorted pipeline returns a single string
instead of an array. Indexing it (e.g., $sorted[0]) then returns a
character rather than the full tool name, causing errors like
"Method invocation failed because [System.Char] does not contain a
method named 'ToLower'".

Wrapping the pipeline in @() ensures $sorted is always an array,
fixing both the list display and number-based selection.

1 files changed, 2 insertions, 2 deletions

diff --git a/run.ps1 b/run.ps1
index 3a7dc09..af8effe 100644
--- a/run.ps1
+++ b/run.ps1
@@ -73,7 +73,7 @@ if (Test-Path ".run/src/bin/*.zig") {
 }
 
 if ($args.Count -eq 0) {
-    $sorted = $tools.Keys | Sort-Object @{Expression={if ($tools[$_].Type -eq 'ps1') {0} else {1}}}, {$_}
+    $sorted = @($tools.Keys | Sort-Object @{Expression={if ($tools[$_].Type -eq 'ps1') {0} else {1}}}, {$_})
     $total = $sorted.Count
     $num_w = $total.ToString().Length
 
@@ -120,7 +120,7 @@ if ($args.Count -eq 0) {
 $target_name = $args[0]
 
 if ($target_name -match '^\d+$') {
-    $sorted = $tools.Keys | Sort-Object @{Expression={if ($tools[$_].Type -eq 'ps1') {0} else {1}}}, {$_}
+    $sorted = @($tools.Keys | Sort-Object @{Expression={if ($tools[$_].Type -eq 'ps1') {0} else {1}}}, {$_})
     $idx = [int]$target_name - 1
     if ($idx -ge 0 -and $idx -lt $sorted.Count) {
         $target_name = $sorted[$idx]