Fix uvicorn not found by updating Dockerfile PATH and dependencies

Dockerfile

@@ -11,10 +11,19 @@ USER myuser
 # Set Hugging Face cache directory
 ENV HF_HOME=/app/.cache/huggingface
 
+# Update PATH to include user’s local bin (where pip installs uvicorn)
+ENV PATH="/home/myuser/.local/bin:${PATH}"
+
 # Copy requirements.txt and install dependencies
 COPY --chown=myuser:myuser requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Explicitly install uvicorn to ensure it’s available
+RUN pip install --no-cache-dir uvicorn
+
+# Pre-download the model to avoid runtime issues
+RUN python -c "from transformers import pipeline; pipeline('text-classification', model='roberta-base-openai-detector')"
+
 # Copy the application code
 COPY --chown=myuser:myuser . .