Update Dockerfile

Dockerfile

@@ -16,8 +16,9 @@ WORKDIR /app
 
 # Define environment variables for the model repository and filename
 # This makes it easy to change the model later without editing the RUN command directly.
-ENV MODEL_REPO="unsloth/gemma-3-4b-it-qat-GGUF"
-ENV MODEL_FILENAME="gemma-3-4b-it-qat.Q4_K_M.gguf"
+ENV MODEL_REPO="unsloth/gemma-3-4b-it-GGUF"
+# CORRECTED FILENAME: Removed '-qat'
+ENV MODEL_FILENAME="gemma-3-4b-it.Q4_K_M.gguf"
 
 # Download the specific GGUF model file directly from Hugging Face Hub.
 # We use 'wget -O' to save the file with the desired filename in the current directory.