fix: remove dataset download, it's already in repo

train-on-this-server.sh

@@ -51,8 +51,9 @@ echo ""
 echo "=== Dataset Preparation ==="
 echo "Checking for combined_20k.jsonl..."
 if [ ! -f "dataset/combined_20k.jsonl" ]; then
-    echo "Dataset not found. Downloading..."
-    curl -L -o dataset/combined_20k.jsonl https://gitea.cyaren.com/cmedina/agenx-lora-training/raw/branch/main/dataset/combined_20k.jsonl
+    echo "ERROR: Dataset not found!"
+    echo "The file should be in the repo at: dataset/combined_20k.jsonl"
+    exit 1
 fi
 
 echo "Preparing dataset..."