default claude 2.1 instead of 1.3 in openai compat endpoint since 1.3 is not accessible on all keys

.env.example

@@ -5,6 +5,9 @@
 # All values have reasonable defaults, so you only need to change the ones you
 # want to override.
 
+# Use production mode unless you are developing locally.
+NODE_ENV=production
+
 # ------------------------------------------------------------------------------
 # General settings:
 
@@ -112,8 +115,7 @@
 
 # ------------------------------------------------------------------------------
 # Secrets and keys:
-# Do not put any passwords or API keys directly in this file.
-# For Huggingface, set them via the Secrets section in your Space's config UI.
+# For Huggingface, set them via the Secrets section in your Space's config UI. Dp not set them in .env.
 # For Render, create a "secret file" called .env using the Environment tab.
 
 # You can add multiple API keys by separating them with a comma.