fixup! ✨(backend) use pydantic AI to manage vercel data stream protocol

Author: lunika

src/backend/pyproject.toml

@@ -36,7 +36,6 @@ dependencies = [
     "django-filter==25.2",
     "django-lasuite[all]==0.0.22",
     "django-parler==2.3",
-    "django-pydantic-field==0.4.0",
     "django-redis==6.0.0",
     "django-storages[s3]==1.14.6",
     "django-timezone-field>=5.1",