fix: install unsloth in Dockerfile at build time (not at click-time)

Dockerfile

@@ -8,9 +8,10 @@ RUN apt-get update && apt-get install -y git build-essential && rm -rf /var/lib/
 RUN pip install --no-cache-dir \
     torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu121 && \
     pip install --no-cache-dir \
-    trl transformers datasets accelerate \
+    trl transformers datasets accelerate peft bitsandbytes \
     openenv-core fastapi uvicorn pydantic \
-    wandb faker python-dotenv gradio
+    wandb faker python-dotenv gradio && \
+    pip install --no-cache-dir "unsloth @ git+https://github.com/unslothai/unsloth.git"
 
 COPY . .