Fix tsconfig and test folder

.opencode/tools/multi-model.ts

@@ -182,15 +182,15 @@ function levenshtein(left: string, right: string): number {
       const cost = left[leftIndex - 1] === right[rightIndex - 1] ? 0 : 1;
 
       row[rightIndex] = Math.min(
-        row[rightIndex] + 1,
-        row[rightIndex - 1] + 1,
-        previous + cost,
+        row[rightIndex]! + 1,
+        row[rightIndex - 1]! + 1,
+        previous! + cost,
       );
       previous = current;
     }
   }
 
-  return row[right.length];
+  return row[right.length]!;
 }
 
 /**
@@ -242,7 +242,7 @@ function suggestModels(requested: string, allowlist: string[]): string[] {
  * ```
  */
 function formatInvalidModelError(invalidModels: string[], allowlist: string[]): string {
-  const [firstInvalidModel] = invalidModels;
+  const firstInvalidModel = invalidModels[0]!;
   const suggestions = suggestModels(firstInvalidModel, allowlist);
   const suggestionText =
     suggestions.length > 0
@@ -369,7 +369,7 @@ export default tool({
     const failedModels: string[] = [];
 
     for (let i = 0; i < windowPlans.length; i++) {
-      const plan = windowPlans[i];
+      const plan = windowPlans[i]!;
       const isFirst = i === 0;
 
       const worktreePath = getWorktreePath(safeSessionName, plan.windowName);