replace Capybara with SlimOrca (compatible ShareGPT format)

human_chat_qlora.yml

@@ -29,15 +29,16 @@ default_system_message: >-
   a clear, useful, conversational answer as if talking to a knowledgeable friend.
 
 # --- Datasets ---
-# Both Capybara and OpenHermes use ShareGPT format:
-#   field: conversations, role key: from, content key: value
+# Both use ShareGPT format: conversations field, from/value keys
+# SlimOrca: ~15k sample of high-quality multi-turn conversations
+# OpenHermes-2.5: broad instruction coverage, 5% sample (~50k)
 datasets:
-  - path: LDJnr/Capybara
+  - path: Open-Orca/SlimOrca
     type: chat_template
     field_messages: conversations
     message_field_role: from
     message_field_content: value
-    split: train
+    split: "train[:3%]"
 
   - path: teknium/OpenHermes-2.5
     type: chat_template