Phase 14 구현: 회의 모드 (Meeting Mode)

실시간 녹음 + 타임스탬프 메모 + STT 전사 + LLM 구조화 회의록 + PDF/MD 내보내기.
CaptionService 연동, 동시 사용 충돌 방지, 긴 회의 2-pass 요약 지원.
DB 2테이블, IPC 15채널, UI 3뷰(목록/녹음/상세), 12개 locale i18n.

src/shared/ipc-channels.ts

@@ -305,6 +305,26 @@ export const IPC_CHANNELS = {
     ACTION_ERROR: 'voiceAction:actionError',
   },
 
+  // ── Phase 14: Meeting Mode ──
+  MEETING_MODE: {
+    START_RECORDING: 'meetingMode:startRecording',
+    STOP_RECORDING: 'meetingMode:stopRecording',
+    ADD_MEMO: 'meetingMode:addMemo',
+    GET_STATE: 'meetingMode:getState',
+    GET_SESSIONS: 'meetingMode:getSessions',
+    GET_SESSION: 'meetingMode:getSession',
+    DELETE_SESSION: 'meetingMode:deleteSession',
+    UPDATE_TITLE: 'meetingMode:updateTitle',
+    EXPORT_PDF: 'meetingMode:exportPdf',
+    EXPORT_MARKDOWN: 'meetingMode:exportMarkdown',
+    // Main → Renderer events
+    STATE_CHANGED: 'meetingMode:stateChanged',
+    SEGMENT: 'meetingMode:segment',
+    PROCESSING_PROGRESS: 'meetingMode:processingProgress',
+    SESSION_COMPLETED: 'meetingMode:sessionCompleted',
+    ERROR: 'meetingMode:error',
+  },
+
   // ── Phase 11: License & Monetization ──
   LICENSE: {
     GET_INFO: 'license:getInfo',