Fixed regression that broke fuzzy matching for slash commands (#7859)

This addresses bug #7857 which was introduced recently as part of PR
#7704.

codex-rs/tui/src/bottom_pane/command_popup.rs

@@ -373,4 +373,23 @@ mod tests {
         let description = rows.first().and_then(|row| row.description.as_deref());
         assert_eq!(description, Some("send saved prompt"));
     }
+
+    #[test]
+    fn fuzzy_filter_matches_subsequence_for_ac() {
+        let mut popup = CommandPopup::new(Vec::new(), false);
+        popup.on_composer_text_change("/ac".to_string());
+
+        let cmds: Vec<&str> = popup
+            .filtered_items()
+            .into_iter()
+            .filter_map(|item| match item {
+                CommandItem::Builtin(cmd) => Some(cmd.command()),
+                CommandItem::UserPrompt(_) => None,
+            })
+            .collect();
+        assert!(
+            cmds.contains(&"compact") && cmds.contains(&"feedback"),
+            "expected fuzzy search for '/ac' to include compact and feedback, got {cmds:?}"
+        );
+    }
 }