fix: 彻底完成迁移

package.json

@@ -30,7 +30,6 @@
     "@types/cors": "^2.8.17",
     "@sinclair/typebox": "^0.34.9",
     "@types/express": "^5.0.0",
-    "@types/fluent-ffmpeg": "^2.1.24",
     "@types/node": "^22.0.1",
     "@types/qrcode-terminal": "^0.12.2",
     "@types/ws": "^8.5.12",
@@ -58,7 +57,6 @@
     "@ffmpeg.wasm/core-mt": "^0.13.2",
     "@ffmpeg.wasm/main": "^0.13.1",
     "express": "^5.0.0",
-    "fluent-ffmpeg": "^2.1.2",
     "piscina": "^4.7.0",
     "qrcode-terminal": "^0.12.0",
     "silk-wasm": "^3.6.1",