fix: ascii art issue

#1918

backend/main.py

@@ -25,6 +25,8 @@ from apps.litellm.main import (
     start_litellm_background,
     shutdown_litellm_background,
 )
+
+
 from apps.audio.main import app as audio_app
 from apps.images.main import app as images_app
 from apps.rag.main import app as rag_app
@@ -74,7 +76,7 @@ class SPAStaticFiles(StaticFiles):
 
 
 print(
-    f"""
+    rf"""
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