refactor: move useCipherWorker hook to hooks directory

app/benchmark/page.tsx

@@ -8,7 +8,7 @@ import type {
 } from "@/types/benchmark";
 import { BenchmarkEngine, isWebCryptoSupported } from "@/lib/utils/benchmark";
 import { getDeviceInfo } from "@/lib/utils/deviceInfo";
-import { useCipherWorker } from "@/lib/hooks/useCipherWorker";
+import { useCipherWorker } from "@/hooks/useCipherWorker";
 import {
   addBenchmarkSession,
   loadBenchmarkHistory,
@@ -422,4 +422,4 @@ export default function BenchmarkPage() {
       </main>
     </div>
   );
-}
+}

components/avalanche/AvalancheVisualizer.tsx

@@ -12,7 +12,7 @@
 
 import { useEffect, useMemo, useRef, useState } from 'react'
 import type { CipherResult } from '../../lib/cipher/types'
-import { useCipherWorker } from '../../lib/hooks/useCipherWorker'
+import { useCipherWorker } from '../../hooks/useCipherWorker'
 import {
   computeByteCells,
   diffStats,

components/challenge/ChallengeMode.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import { useState, useEffect, useCallback, useMemo, useRef } from 'react'
-import { useCipherWorker } from '../../lib/hooks/useCipherWorker'
+import { useCipherWorker } from '../../hooks/useCipherWorker'
 import { generateChallengeData, type ChallengeData, type ChallengeDifficulty } from '../../lib/challenge/generator'
 import { getWrongAnswerExplanation } from '../../lib/challenge/explain'
 import { CIPHER_REGISTRY } from '../../lib/cipher/registry'

components/challenge/DailyQuiz.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import { useState, useEffect, useRef } from 'react';
-import { useCipherWorker } from '../../lib/hooks/useCipherWorker';
+import { useCipherWorker } from '../../hooks/useCipherWorker';
 import { generateDailyQuiz, getDailyQuizState, saveDailyQuizState, calculateNewStreak, type DailyQuizData, type DailyQuizState } from '../../lib/challenge/daily';
 import { getWrongAnswerExplanation } from '../../lib/challenge/explain';
 import { CIPHER_REGISTRY } from '../../lib/cipher/registry';

components/cipher/CipherLayout.tsx

@@ -4,7 +4,7 @@ import { useRouter } from 'next/navigation'
 import dynamic from 'next/dynamic'
 import type { CipherDefinition, CipherOptionValue } from '../../lib/cipher/registry'
 import type { CipherResult } from '../../lib/cipher/types'
-import { useCipherWorker } from '../../lib/hooks/useCipherWorker'
+import { useCipherWorker } from '../../hooks/useCipherWorker'
 import type { AnimationSpeed } from './StepAnimator'
 import WorkspacePresetManager from './WorkspacePresetManager'
 import ConversionHistory from './ConversionHistory'

components/compare/CipherComparisonPanel.tsx

@@ -6,7 +6,7 @@ import type {
   CipherDirection,
   CipherResult,
 } from '../../lib/cipher/types'
-import { useCipherWorker } from '../../lib/hooks/useCipherWorker'
+import { useCipherWorker } from '../../hooks/useCipherWorker'
 import CipherLifecycleBadge from '../cipher/CipherLifecycleBadge'
 import {
   type CipherWorkerOptions,

components/tests/CipherIntegrationDashboard.tsx

@@ -2,7 +2,7 @@
 
 import React, { useState } from "react";
 import { runCipherIntegrationTests, TestSuiteSummary } from "@/lib/utils/cipherTestRunner";
-import { useCipherWorker } from "@/lib/hooks/useCipherWorker";
+import { useCipherWorker } from "@/hooks/useCipherWorker";
 
 export const CipherIntegrationDashboard: React.FC = () => {
   const [isRunning, setIsRunning] = useState(false);

components/workers/WorkerCommunicationDashboard.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import React, { useState } from "react";
-import { useCipherWorker } from "@/lib/hooks/useCipherWorker";
+import { useCipherWorker } from "@/hooks/useCipherWorker";
 
 interface LogEntry {
   id: string;
@@ -119,4 +119,4 @@ export const WorkerCommunicationDashboard: React.FC = () => {
       </div>
     </div>
   );
-};
+};

lib/hooks/useCipherWorker.ts → hooks/useCipherWorker.ts

@@ -7,9 +7,9 @@
 'use client'
 
 import { useEffect, useRef, useState, useCallback } from 'react'
-import type { CipherResult } from '../cipher/types'
-import type { WorkerRequest, WorkerResponse } from '../../types/worker'
-import type { CipherErrorCode } from '../utils/errors'
+import type { CipherResult } from '../lib/cipher/types'
+import type { WorkerRequest, WorkerResponse } from '../types/worker'
+import type { CipherErrorCode } from '../lib/utils/errors'
 
 
 const MAX_CACHE_SIZE = 200
@@ -144,7 +144,7 @@ export function useCipherWorker() {
 
 
     const worker = new Worker(
-      new URL('../workers/cipher.worker.ts', import.meta.url)
+      new URL('../lib/workers/cipher.worker.ts', import.meta.url)
     )
 
 
@@ -232,7 +232,7 @@ export function useCipherWorker() {
 
       return new Promise<CipherResult>((resolve, reject) => {
         const id = Math.random().toString(36).substring(2, 11)
-        
+
         // Mark this as the latest request. Any older in-flight requests will be considered stale
         // and their eventual worker responses will be ignored.
         latestRequestIdRef.current = id

tests/unit/hooks/useCipherWorker.test.ts

@@ -1,5 +1,5 @@
 import { renderHook, act } from '@testing-library/react'
-import { useCipherWorker, clearCipherWorkerCache } from '@/lib/hooks/useCipherWorker'
+import { useCipherWorker, clearCipherWorkerCache } from '@/hooks/useCipherWorker'
 import { vi, describe, it, expect, beforeEach, afterEach } from 'vitest'
 
 // Mock Worker class