fix types

Author: jahooma

evals/buffbench/main-single-eval.ts

@@ -4,7 +4,7 @@ import { runBuffBench } from './run-buffbench'
 
 async function main() {
   await runBuffBench({
-    evalDataPath: path.join(__dirname, 'eval-codebuff.json'),
+    evalDataPaths: [path.join(__dirname, 'eval-codebuff.json')],
     agents: ['base2'],
     taskIds: ['filter-system-history'],
   })