Phase 1+2 구현: Electron 뼈대 + STT/핫키/오케스트레이터

Phase 1:
- 프로젝트 초기화 (TypeScript strict, electron-vite, ESLint, Prettier)
- shared 타입 (ipc-channels 113채널, types, errors, constants)
- 메인 프로세스 뼈대 (bootstrap, lifecycle, 단일 인스턴스)
- LoggerService, ConfigService (electron-store ESM dynamic import)
- React 19 + MUI 7 Dashboard, 시스템 트레이

Phase 2:
- AudioCaptureService (node-record-lpcm16, PCM16 16kHz mono)
- HotkeyService (uiohook-napi, 더블프레스, holdMode/toggleMode)
- LocalSTTService (faster-whisper Python sidecar, 이중 조건 플러시)
- VoiceModeService 오케스트레이터 (이중 상태머신, Action Queue)
- Python sidecar (FastAPI: health/load/transcribe/shutdown)
- IPC 핸들러 (voice, stt, hotkey) + Preload API 확장

package.json

@@ -0,0 +1,50 @@
+{
+  "name": "d3ro-voice",
+  "version": "1.0.0",
+  "description": "로컬 AI 음성 어시스턴트",
+  "main": "./out/main/index.js",
+  "scripts": {
+    "dev": "electron-vite dev",
+    "build": "electron-vite build",
+    "preview": "electron-vite preview",
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint . --ext .ts,.tsx",
+    "format": "prettier --write \"src/**/*.{ts,tsx,css}\"",
+    "test": "vitest run",
+    "test:watch": "vitest"
+  },
+  "author": "",
+  "license": "MIT",
+  "devDependencies": {
+    "@electron-toolkit/tsconfig": "^1.0.1",
+    "@types/node": "^22.13.0",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
+    "@typescript-eslint/eslint-plugin": "^8.0.0",
+    "@typescript-eslint/parser": "^8.0.0",
+    "@vitejs/plugin-react": "^4.3.0",
+    "electron": "^33.3.0",
+    "electron-vite": "^2.3.0",
+    "eslint": "^8.57.0",
+    "eslint-config-prettier": "^9.1.0",
+    "prettier": "^3.3.0",
+    "typescript": "^5.7.0",
+    "vite": "^5.4.0",
+    "vitest": "^2.1.0"
+  },
+  "dependencies": {
+    "@electron-toolkit/preload": "^3.0.2",
+    "@electron-toolkit/utils": "^4.0.0",
+    "@emotion/react": "^11.14.0",
+    "@emotion/styled": "^11.14.0",
+    "@mui/icons-material": "^7.0.0",
+    "@mui/material": "^7.0.0",
+    "@rollup/rollup-win32-x64-msvc": "^4.60.1",
+    "electron-log": "^5.2.0",
+    "electron-store": "^10.0.0",
+    "node-record-lpcm16": "^1.0.1",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "uiohook-napi": "^1.5.5"
+  }
+}