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/errors.ts

@@ -151,6 +151,14 @@ export enum ErrorCode {
   VoiceActionBlocked = 877,
   VoiceActionInvalidPlan = 878,
 
+  // === Phase 14: Meeting Mode (880-889) ===
+  MeetingAlreadyRecording = 880,
+  MeetingNotRecording = 881,
+  MeetingProcessingFailed = 882,
+  MeetingSessionNotFound = 883,
+  MeetingExportFailed = 884,
+  MeetingPdfFailed = 885,
+
   // === Config (800-849) ===
   ConfigReadFailed = 800,
   ConfigWriteFailed = 801,

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',

src/shared/types.ts

@@ -1262,3 +1262,99 @@ export interface VoiceActionErrorEvent {
   message: string
   userText: string
 }
+
+// ============================================================
+// Phase 14: Meeting Mode
+// ============================================================
+
+export type MeetingModeState = 'idle' | 'recording' | 'processing' | 'completed' | 'error'
+
+export interface MeetingMemo {
+  id: string
+  sessionId: string
+  content: string
+  /** 녹음 시작 기준 상대 타임스탬프 (ms) */
+  timestampMs: number
+  createdAt: number
+}
+
+export interface MeetingSessionSummary {
+  id: string
+  title: string | null
+  status: 'recording' | 'processing' | 'completed' | 'error'
+  startedAt: number
+  endedAt: number | null
+  durationMs: number | null
+  memoCount: number
+}
+
+export interface MeetingSessionDetail extends MeetingSessionSummary {
+  rawTranscript: string | null
+  minutesMarkdown: string | null
+  minutes: MeetingMinutes | null
+  memos: MeetingMemo[]
+  sttModel: string | null
+  llmModel: string | null
+  errorMessage: string | null
+}
+
+export interface MeetingMinutes {
+  summary: string
+  decisions: string[]
+  actionItems: Array<{ task: string; assignee?: string; deadline?: string }>
+  timeline: Array<{ time: string; content: string; type: 'transcript' | 'memo' }>
+}
+
+export interface MeetingSessionPage {
+  sessions: MeetingSessionSummary[]
+  total: number
+  page: number
+  pageSize: number
+  totalPages: number
+}
+
+export interface MeetingStartResult {
+  sessionId: string
+}
+
+export interface MeetingAddMemoParams {
+  content: string
+}
+
+export interface MeetingGetSessionsParams {
+  page: number
+  pageSize: number
+}
+
+export interface MeetingGetSessionParams {
+  sessionId: string
+}
+
+export interface MeetingDeleteSessionParams {
+  sessionId: string
+}
+
+export interface MeetingExportParams {
+  sessionId: string
+}
+
+export interface MeetingModeStateInfo {
+  state: MeetingModeState
+  sessionId: string | null
+  elapsedMs: number
+  memoCount: number
+  segmentCount: number
+}
+
+export type MeetingProcessingStep =
+  | 'merging'
+  | 'generating'
+  | 'parsing'
+  | 'saving'
+  | 'notifying'
+
+export interface MeetingProcessingProgress {
+  sessionId: string
+  step: MeetingProcessingStep
+  percent: number
+}