feat(V2-1a): Monorepo 구조 전환 — apps/desktop으로 V1 이동

- npm workspaces 루트 (apps/*, packages/*) 세팅
- V1 전체를 apps/desktop/으로 git mv (src, resources, tests, sidecar,
  scripts, electron.vite.config.ts, electron-builder.yml, vitest.config.ts,
  tsconfig.node.json, tsconfig.web.json)
- apps/desktop/package.json 신규 (name=@d3ro/desktop)
- productName: 'd3ro-voice' 명시 — app.getName()을 고정하여 userData 경로
  %APPDATA%\d3ro-voice\ 그대로 유지 (기존 DB/설정 연속성 보장)
- 루트 package.json을 workspace 루트로 재구성, 공통 devDep만 유지
  (typescript, eslint, prettier)
- turbo.json, tsconfig.base.json 추가 (Turborepo 자체 설치는 별도 sub-phase)
- memory/project_status.md 생성 (규칙 13)

검증:
- npm run typecheck 통과
- npm run build 통과 (electron-vite main+preload+renderer)
- npm run dev 실제 실행 → DB/핫키/Ollama 자동 실행 모두 정상

src/main/ipc/instruction-handlers.ts

@@ -1,67 +0,0 @@
-// src/main/ipc/instruction-handlers.ts
-
-import { ipcMain } from 'electron'
-import { ipcSuccess, ipcError, ErrorCode } from '@shared/errors'
-import { getCustomInstructionService } from '../services/CustomInstructionService'
-import type { CustomInstruction } from '../services/CustomInstructionService'
-
-// IPC_CHANNELS에 instruction 채널이 없으므로 직접 문자열 사용
-// (Phase 6 전용, 설계서 02에는 미포함)
-const CHANNELS = {
-  GET_ALL: 'instruction:getAll',
-  GET_BY_ID: 'instruction:getById',
-  CREATE: 'instruction:create',
-  UPDATE: 'instruction:update',
-  DELETE: 'instruction:delete',
-  REORDER: 'instruction:reorder'
-} as const
-
-export function registerInstructionHandlers(): void {
-  ipcMain.handle(CHANNELS.GET_ALL, async () => {
-    return ipcSuccess(getCustomInstructionService().getAll())
-  })
-
-  ipcMain.handle(CHANNELS.GET_BY_ID, async (_event, params: { id: string }) => {
-    return ipcSuccess(getCustomInstructionService().getById(params.id))
-  })
-
-  ipcMain.handle(
-    CHANNELS.CREATE,
-    async (
-      _event,
-      params: { name: string; description: string; prompt: string; icon?: string }
-    ) => {
-      try {
-        const result = getCustomInstructionService().create(params)
-        return ipcSuccess(result)
-      } catch {
-        return ipcError(ErrorCode.ConfigWriteFailed, 'Failed to create instruction')
-      }
-    }
-  )
-
-  ipcMain.handle(
-    CHANNELS.UPDATE,
-    async (_event, params: { id: string; data: Partial<CustomInstruction> }) => {
-      try {
-        const result = getCustomInstructionService().update(params.id, params.data)
-        return ipcSuccess(result)
-      } catch {
-        return ipcError(ErrorCode.ConfigWriteFailed, 'Failed to update instruction')
-      }
-    }
-  )
-
-  ipcMain.handle(CHANNELS.DELETE, async (_event, params: { id: string }) => {
-    const result = getCustomInstructionService().delete(params.id)
-    if (!result) {
-      return ipcError(ErrorCode.ConfigWriteFailed, 'Cannot delete builtin instruction')
-    }
-    return ipcSuccess(undefined)
-  })
-
-  ipcMain.handle(CHANNELS.REORDER, async (_event, params: { ids: string[] }) => {
-    getCustomInstructionService().reorder(params.ids)
-    return ipcSuccess(undefined)
-  })
-}