fix: Fix biome correctness errors

tests/open.test.ts

@@ -10,24 +10,6 @@ import {
 import * as fs from "node:fs";
 import * as os from "node:os";
 import { openMultiModel } from "../src/core/open";
-import {
-  createWindowBaseName,
-  createWindowPlans,
-  findDuplicates,
-  formatInvalidModelError,
-  getBinaryName,
-  getSessionPath,
-  getWorktreePath,
-  getWorktreesForSession,
-  launchModelInWindow,
-  levenshtein,
-  normalizeModels,
-  runCommand,
-  sanitizeName,
-  shellQuote,
-  suggestModels,
-  undoWorktree,
-} from "../src/core/utils";
 
 const originalBun$: typeof Bun.$ = (globalThis as any).Bun?.$;
 let mockCommandResponses: Record<
@@ -37,7 +19,7 @@ let mockCommandResponses: Record<
 let executedCommands: string[] = [];
 
 function setupMockBun$() {
-  const mockFn = mock((strings: TemplateStringsArray, ...values: any[]) => {
+  const mockFn = mock((_strings: TemplateStringsArray, ...values: any[]) => {
     const parts = values[0] as string[];
     const commandSignature = parts.join(" ");
 
@@ -71,12 +53,12 @@ function restoreOriginalBun$() {
 
 describe("multi-model launch", () => {
   let existsSyncMock: ReturnType<typeof spyOn>;
-  let bunMock: ReturnType<typeof setupMockBun$>;
+  let _bunMock: ReturnType<typeof setupMockBun$>;
 
   beforeEach(() => {
     spyOn(os, "homedir").mockReturnValue("/mock/home");
     existsSyncMock = spyOn(fs, "existsSync").mockReturnValue(false);
-    bunMock = setupMockBun$();
+    _bunMock = setupMockBun$();
     executedCommands = [];
 
     mockCommandResponses = {