refactor(main): IPC 채널 SSOT 일원화 + AppConfig 타입 강화 (WS2)

- ipc-channels.ts SSOT에 9개 그룹/키 추가: INSTRUCTION, SYSTEM_AUDIO,
  POPUP_RESULT/HISTORY/COMMAND/CAPTION, VOICE_PARTIAL, CLIPBOARD, APP,
  VOICE_CONVERSATION.FINISH_LISTENING
- WindowManager/handlers/bootstrap 하드코딩 채널 -> IPC_CHANNELS 교체.
  불일치 4건(result:* vs window:tip*)은 preload 재검증 후 SSOT로 통일.
  notifyRenderer channel: string -> IPCChannel 타입 좁힘.
- AppConfig에 7개 누락 키 추가(customInstructions, llmChains,
  voiceCommandRules, voiceCommandsEnabled, activeInstructionId,
  activeChainId, captionAudioSource) -> as never 16건 제거.
- ChainService/CustomInstructionService/WindowManager dynamic require -> static import.
- services/index.ts 데드 레지스트리 제거 (import 0건).
SKIP: ipcSuccess/ipcError 헬퍼 통일, catch 패턴(별도)
정책: docs/REFACTOR_POLICY.md DP2, DP9

packages/core/src/ipc-channels.ts

@@ -279,6 +279,7 @@ export const IPC_CHANNELS = {
     GET_HISTORY: 'voiceConversation:getHistory',
     CLEAR_HISTORY: 'voiceConversation:clearHistory',
     CANCEL_RESPONSE: 'voiceConversation:cancelResponse',
+    FINISH_LISTENING: 'voiceConversation:finishListening',
     /** OpenAI Realtime ephemeral token 발급 (Supabase realtime-token 경유) */
     GET_REALTIME_TOKEN: 'voiceConversation:getRealtimeToken',
     // Main → Renderer events
@@ -399,6 +400,70 @@ export const IPC_CHANNELS = {
     SYNC_COMPLETE: 'cloudSync:syncComplete',
     SYNC_ERROR: 'cloudSync:syncError',
   },
+
+  // ── Custom Instructions ──
+  INSTRUCTION: {
+    GET_ALL: 'instruction:getAll',
+    GET_BY_ID: 'instruction:getById',
+    CREATE: 'instruction:create',
+    UPDATE: 'instruction:update',
+    DELETE: 'instruction:delete',
+    REORDER: 'instruction:reorder',
+  },
+
+  // ── System Audio (Caption loopback) ──
+  SYSTEM_AUDIO: {
+    ENABLE_LOOPBACK: 'system-audio:enable-loopback',
+    DISABLE_LOOPBACK: 'system-audio:disable-loopback',
+  },
+
+  // ── Popup Internal Channels (ResultPopup 2-phase) ──
+  POPUP_RESULT: {
+    PREPARE: 'result:prepare',
+    MEASURED: 'result:measured',
+    SHOW: 'result:show',
+  },
+
+  // ── Popup Internal Channels (HistoryPopup) ──
+  POPUP_HISTORY: {
+    SHOW_POPUP: 'history:showPopup',
+    ITEM_SELECTED: 'history:itemSelected',
+    POPUP_DISMISSED: 'history:popupDismissed',
+    SHOW_ITEMS: 'history:showItems',
+    SHOW: 'history:show',
+    HIDE: 'history:hide',
+    KEY_EVENT: 'history:keyEvent',
+  },
+
+  // ── Popup Internal Channels (CommandPopup) ──
+  POPUP_COMMAND: {
+    SELECTED: 'command:selected',
+    DISMISSED: 'command:dismissed',
+    SHOW_ITEMS: 'command:showItems',
+    SHOW: 'command:show',
+    HIDE: 'command:hide',
+    KEY_EVENT: 'command:keyEvent',
+  },
+
+  // ── Popup Internal Channels (Caption) ──
+  POPUP_CAPTION: {
+    HIDE: 'caption:hide',
+  },
+
+  // ── Voice Partial Transcript (RecordingTip) ──
+  VOICE_PARTIAL: {
+    PARTIAL_TRANSCRIPT: 'voice:partialTranscript',
+  },
+
+  // ── Clipboard ──
+  CLIPBOARD: {
+    COPY: 'clipboard:copy',
+  },
+
+  // ── App-wide events ──
+  APP: {
+    DATA_CHANGED: 'app:dataChanged',
+  },
 } as const
 
 // 타입 유틸리티: 채널명 유니온 추출

packages/core/src/types.ts

@@ -410,6 +410,20 @@ export interface AppConfig {
   cloudSyncLastAt: number | null
   /** 빅뱅 Phase 2: 첫 실행 온보딩 완료 여부 (로컬 모드 entry point) */
   onboardingCompleted: boolean
+  /** Phase 6: Custom instructions (CustomInstructionService) */
+  customInstructions: import('@d3ro/core/types').CustomInstruction[]
+  /** Phase 10.4: LLM chains (ChainService) */
+  llmChains: import('@d3ro/core/types').LLMChain[]
+  /** Phase 10.5: Voice command rules (VoiceCommandService) */
+  voiceCommandRules: import('@d3ro/core/types').VoiceCommandRule[]
+  /** Phase 10.5: Voice commands enabled flag */
+  voiceCommandsEnabled: boolean
+  /** Phase 6: Active instruction ID (CommandPopup) */
+  activeInstructionId: string
+  /** Phase 10.4: Active chain ID (VoiceModeService) */
+  activeChainId: string | null
+  /** Phase 10.1: Caption audio source (CaptionService, MeetingModeService) */
+  captionAudioSource: import('@d3ro/core/types').CaptionAudioSource
 }
 
 export interface ConfigGetParams {
@@ -777,6 +791,22 @@ export interface SetVoiceCommandEnabledParams {
   enabled: boolean
 }
 
+// ============================================================
+// Phase 6: Custom Instructions
+// ============================================================
+
+export interface CustomInstruction {
+  id: string
+  name: string
+  description: string
+  prompt: string
+  icon: string
+  isBuiltin: boolean
+  order: number
+  createdAt: number
+  updatedAt: number
+}
+
 // ============================================================
 // Phase 10: Screen Context (10.2)
 // ============================================================