feat: 完整記錄詞彙選擇題設計規格 - 為階段2擴展做準備

## 技術實作規格增強
- 🎨 完整記錄您設計的 VocabChoiceTest 組件架構
- 📋 詳細的 ChoiceGrid 響應式網格設計
- 🎯 完整的 ChoiceOption 狀態樣式系統
- 🔧 三區域設計: 問題顯示/選項網格/結果顯示

## 設計規格詳情
- 組件接口: VocabChoiceTestProps 完整定義
- 狀態管理: selectedAnswer + showResult 邏輯
- 樣式系統: 正確(綠)/錯誤(紅)/選中(藍)/默認(灰)
- 響應式: grid-cols-1 sm:grid-cols-2 自適應布局

## 階段2擴展準備
- ✅ 有完整設計規格可參考實作
- ✅ 有明確的組件分工和職責
- ✅ 有詳細的UI樣式和交互邏輯
- ✅ 受開發控制規範約束避免過度工程

為未來的階段2詞彙選擇功能提供完整的實作指南

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

note/複習系統/技術實作規格.md

@@ -94,25 +94,172 @@ const confidenceToScore = {
 }
 ```
 
-### **階段2: 詞彙選擇題 (計劃中)**
+### **階段2: 詞彙選擇題 (已設計完成)**
+
+**組件架構** (基於您的設計):
+```typescript
+interface VocabChoiceTestProps {
+  cardData: FlashcardData
+  options: string[]         // 4選1選項
+  onAnswer: (answer: string) => void
+  onReportError: () => void
+  disabled?: boolean
+}
+
+// 組件分區設計
+const VocabChoiceTest = () => {
+  const questionArea = // 問題顯示區域
+  const optionsArea =  // 選項網格區域
+  const resultArea =   // 結果顯示區域
+
+  return (
+    <ChoiceTestContainer
+      questionArea={questionArea}
+      optionsArea={optionsArea}
+      resultArea={resultArea}
+    />
+  )
+}
+```
+
+**問題顯示區域設計**:
+```typescript
+const questionArea = (
+  <div className="text-center">
+    <div className="bg-gray-50 rounded-lg p-6">
+      <h3 className="font-semibold text-gray-900 mb-3 text-left">定義</h3>
+      <p className="text-gray-700 text-left text-lg leading-relaxed">
+        {cardData.definition}
+      </p>
+    </div>
+    <p className="text-lg text-gray-700 mt-4 text-left">
+      請選擇符合上述定義的英文詞彙：
+    </p>
+  </div>
+)
+```
+
+**狀態管理設計**:
+```typescript
+const [selectedAnswer, setSelectedAnswer] = useState<string | null>(null)
+const [showResult, setShowResult] = useState(false)
+
+// 答案驗證邏輯
+const isCorrect = useMemo(() =>
+  selectedAnswer === cardData.word,
+  [selectedAnswer, cardData.word]
+)
+
+// 選擇處理
+const handleAnswerSelect = useCallback((answer: string) => {
+  if (disabled || showResult) return
+  setSelectedAnswer(answer)
+  setShowResult(true)
+  onAnswer(answer)
+}, [disabled, showResult, onAnswer])
+```
 
 **選項生成算法**:
 ```typescript
-// 暫時使用固定選項 (MVP階段)
+// MVP階段: 固定選項
-const mockOptions = ['apple', 'orange', 'banana', correctAnswer]
+const generateSimpleOptions = (correctWord: string): string[] => {
-const shuffledOptions = shuffle(mockOptions)
+  const fixedDistractors = ['apple', 'orange', 'banana']
-```
+  return shuffle([correctWord, ...fixedDistractors])
+}
 
-**未來升級方案**:
+// 階段3升級方案: 智能干擾項
-```typescript
+const generateSmartOptions = (correctWord: Flashcard, allWords: Flashcard[]): string[] => {
-// 基於詞性和CEFR等級生成干擾項
-const generateDistractors = (correctWord, allWords) => {
   const samePOS = allWords.filter(w => w.partOfSpeech === correctWord.partOfSpeech)
   const sameCEFR = allWords.filter(w => w.cefr === correctWord.cefr)
-  return selectRandom([...samePOS, ...sameCEFR], 3)
+  const distractors = selectRandom([...samePOS, ...sameCEFR], 3)
+  return shuffle([correctWord.word, ...distractors.map(w => w.word)])
 }
 ```
 
+**ChoiceGrid組件設計** (您的完整設計):
+```typescript
+interface ChoiceGridProps {
+  options: string[]           // 4個選項
+  selectedOption?: string | null
+  correctAnswer?: string
+  showResult?: boolean       // 控制結果顯示
+  onSelect: (option: string) => void
+  disabled?: boolean
+  className?: string
+}
+
+// 響應式網格布局
+<div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
+  {options.map((option, index) => (
+    <ChoiceOption
+      key={`${option}-${index}`}
+      option={option}
+      index={index}
+      isSelected={selectedOption === option}
+      isCorrect={showResult && option === correctAnswer}
+      isIncorrect={showResult && option !== correctAnswer}
+      showResult={showResult}
+      onSelect={onSelect}
+      disabled={disabled}
+    />
+  ))}
+</div>
+```
+
+**ChoiceOption樣式規格** (您的設計):
+```typescript
+// 選項按鈕狀態樣式
+const getOptionStyles = (isSelected, isCorrect, isIncorrect, showResult) => {
+  if (showResult) {
+    if (isCorrect) return 'border-green-500 bg-green-50 text-green-700'
+    if (isIncorrect && isSelected) return 'border-red-500 bg-red-50 text-red-700'
+    return 'border-gray-200 bg-gray-50 text-gray-500'
+  }
+
+  if (isSelected) return 'border-blue-500 bg-blue-50 text-blue-700'
+  return 'border-gray-200 hover:border-blue-300 hover:bg-blue-50'
+}
+
+// 按鈕基礎樣式
+className={`p-4 text-center rounded-lg border-2 transition-all ${getOptionStyles()}`}
+```
+
+**UI組件層次設計**:
+```typescript
+// 您設計的完整組件結構
+<ChoiceTestContainer>          // 外層容器和錯誤處理
+  <TestHeader title="詞彙選擇" cefr={cardData.cefr} />
+  <QuestionArea>               // 問題顯示區域
+    <div className="bg-gray-50 rounded-lg p-6">
+      <h3>定義</h3>
+      <p className="text-lg leading-relaxed">{definition}</p>
+    </div>
+    <p className="text-lg mt-4">請選擇符合上述定義的英文詞彙：</p>
+  </QuestionArea>
+  <OptionsArea>                // 選項區域
+    <ChoiceGrid                // 響應式2x2網格
+      options={options}
+      selectedOption={selectedAnswer}
+      correctAnswer={cardData.word}
+      showResult={showResult}
+      onSelect={handleAnswerSelect}
+      disabled={disabled}
+    />
+  </OptionsArea>
+  <ResultArea>                 // 結果顯示區域
+    {showResult && (
+      <TestResultDisplay
+        isCorrect={isCorrect}
+        correctAnswer={cardData.word}
+        userAnswer={selectedAnswer}
+        pronunciation={cardData.pronunciation}
+        example={cardData.example}
+      />
+    )}
+  </ResultArea>
+</ChoiceTestContainer>
+```
+
 ---
 
 ## 🎨 **UI/UX實作規格**