fix(build): electron-builder v26 호환 — package.json의 configFile 제거, --config 플래그 명시

apps/desktop/package.json

@@ -15,16 +15,12 @@
     "test:unit": "vitest run --config vitest.config.ts",
     "test:watch": "vitest --config vitest.config.ts",
     "pack": "electron-vite build && electron-builder --dir",
-    "dist": "electron-vite build && electron-builder",
+    "dist": "electron-vite build && electron-builder --config electron-builder.yml",
     "build:sidecar": "python scripts/build-sidecar.py",
     "setup:sox": "powershell -ExecutionPolicy Bypass -File scripts/download-sox.ps1"
   },
   "author": "D3RO",
   "license": "MIT",
-  "build": {
-    "extends": null,
-    "configFile": "electron-builder.yml"
-  },
   "devDependencies": {
     "@electron-toolkit/tsconfig": "^1.0.1",
     "@types/better-sqlite3": "^7.6.13",