📦 chore(core): add Celery configuration files

✨ feat(celery_app.py): add Celery app configuration for langflow with Redis as broker and backend
✨ feat(celeryconfig.py): add Celery configuration file with environment variable support for broker URL and result backend URL

src/backend/langflow/core/celery_app.py

@@ -0,0 +1,7 @@
+from celery import Celery
+
+celery_app = Celery(
+    "langflow", broker="redis://queue:6379/0", backend="redis://queue:6379/0"
+)
+# command: celery -A langflow.worker.celery_app worker --loglevel=INFO
+celery_app.conf.task_routes = {"langflow.worker.tasks.*": {"queue": "langflow"}}

src/backend/langflow/core/celeryconfig.py

@@ -0,0 +1,7 @@
+# celeryconfig.py
+import os
+
+broker_url = os.environ.get("BROKER_URL", "redis://localhost:6379/0")
+result_backend = os.environ.get("RESULT_BACKEND", "redis://localhost:6379/0")
+# tasks should be json or pickle
+accept_content = ["json", "pickle"]