Phase 12~13 전체 구현: Pro+ 피처 6종 + 음성 대화 + RAG + OS 자동화

Phase 12:
- FileTranscriptionService: ffmpeg PCM 변환 + 30초 청크 순차 STT
- MeetingSummaryService: 자막 세션 → LLM 자동 요약 + DB summaryText
- DictationTemplateService: 필드별 음성 입력 상태 머신 + 프리셋 3개

Phase 13.1:
- VoiceConversationService: STT→Ollama /api/chat→TTS 대화 루프 (10턴)
- TTSPlaybackService: Windows SAPI 문장 단위 큐 재생
- LocalLLMService.chatStream: Ollama /api/chat 스트리밍

Phase 13.2:
- RAGService: Ollama 임베딩 + SQLite 벡터 + 코사인 유사도 검색
- KnowledgeBasePage: 문서 관리 + 질문/답변 UI
- PDF 파서: zlib FlateDecode 해제 + BT/ET 텍스트 추출

Phase 13.3:
- VoiceActionService: LLM JSON 액션 플랜 생성 + 실행
- 프리셋 6개 (크롬/메모장/탐색기/볼륨), 위험 명령 차단

공통: IPC ~70채널, 에러코드 780-878, i18n 100+키
버그픽스: 라이선스 로컬 키 우선, i18n featureLabel, DOM 중첩

src/renderer/components/AppLayout.tsx

@@ -7,12 +7,16 @@ import DashboardIcon from '@mui/icons-material/Dashboard'
 import HistoryIcon from '@mui/icons-material/History'
 import MenuBookIcon from '@mui/icons-material/MenuBook'
 import ExtensionIcon from '@mui/icons-material/Extension'
+import RecordVoiceOverIcon from '@mui/icons-material/RecordVoiceOver'
+import AutoStoriesIcon from '@mui/icons-material/AutoStories'
 import SettingsIcon from '@mui/icons-material/Settings'
 import { Led } from './ds'
 import { DashboardPage } from '../pages/DashboardPage'
 import { HistoryPage } from '../pages/HistoryPage'
 import { DictionaryPage } from '../pages/DictionaryPage'
 import { CommandsPage } from '../pages/CommandsPage'
+import { VoiceConversationPage } from '../pages/VoiceConversationPage'
+import { KnowledgeBasePage } from '../pages/KnowledgeBasePage'
 import { SettingsModal } from './SettingsModal'
 import { LicenseModal } from './LicenseModal'
 import { OnboardingModal } from './OnboardingModal'
@@ -22,7 +26,7 @@ import { useI18n } from '../i18n'
 import type { TranslationKey } from '../i18n'
 import type { LicenseTier } from '@shared/types'
 
-type Route = 'dashboard' | 'history' | 'dictionary' | 'commands'
+type Route = 'dashboard' | 'history' | 'dictionary' | 'commands' | 'conversation' | 'knowledge'
 
 interface NavItem {
   route: Route
@@ -36,6 +40,8 @@ const NAV_ITEMS: NavItem[] = [
   { route: 'history', labelKey: 'nav.history', abbr: 'HIST', icon: <HistoryIcon sx={{ fontSize: 20 }} /> },
   { route: 'dictionary', labelKey: 'nav.dictionary', abbr: 'DICT', icon: <MenuBookIcon sx={{ fontSize: 20 }} /> },
   { route: 'commands', labelKey: 'nav.commands', abbr: 'CMD', icon: <ExtensionIcon sx={{ fontSize: 20 }} /> },
+  { route: 'conversation', labelKey: 'nav.conversation', abbr: 'TALK', icon: <RecordVoiceOverIcon sx={{ fontSize: 20 }} /> },
+  { route: 'knowledge', labelKey: 'nav.knowledge', abbr: 'RAG', icon: <AutoStoriesIcon sx={{ fontSize: 20 }} /> },
 ]
 
 function tierToLedColor(tier: LicenseTier): 'amber' | 'green' {
@@ -217,6 +223,8 @@ export function AppLayout(): React.ReactElement {
           {currentRoute === 'history' && <HistoryPage />}
           {currentRoute === 'dictionary' && <DictionaryPage />}
           {currentRoute === 'commands' && <CommandsPage />}
+          {currentRoute === 'conversation' && <VoiceConversationPage />}
+          {currentRoute === 'knowledge' && <KnowledgeBasePage />}
         </Box>
       </Box>
       <StatusBar />