build: remaining testcases

.opencode/tools/multi-model.ts

@@ -482,3 +482,19 @@ export default tool({
     ].join("\n");
   },
 });
+
+export const __testing_helpers = {
+  shellQuote,
+  normalizeModels,
+  findDuplicates,
+  createWindowBaseName,
+  createWindowPlans,
+  levenshtein,
+  suggestModels,
+  formatInvalidModelError,
+  sanitizeName,
+  runCommand,
+  getWorktreePath,
+  undoWorktree,
+  launchModelInWindow,
+};