remove duplicated code

ctrl/generate.sh

@@ -9,25 +9,25 @@ cd "$(dirname "$0")/.."
 echo "Generating models from schema/models..."
 
 # Django ORM models
-python -m tools.modelgen from-schema \
+python -m modelgen from-schema \
     --schema schema/models \
     --output mpr/media_assets/models.py \
     --targets django
 
 # Pydantic schemas for FastAPI
-python -m tools.modelgen from-schema \
+python -m modelgen from-schema \
     --schema schema/models \
     --output api/schemas/models.py \
     --targets pydantic
 
 # TypeScript types for Timeline UI
-python -m tools.modelgen from-schema \
+python -m modelgen from-schema \
     --schema schema/models \
     --output ui/timeline/src/types.ts \
     --targets typescript
 
 # Protobuf for gRPC
-python -m tools.modelgen from-schema \
+python -m modelgen from-schema \
     --schema schema/models \
     --output mpr/grpc/protos/worker.proto \
     --targets proto