Move Dockerfile to repository root for Ghaymah build

Dockerfile

@@ -0,0 +1,11 @@
+FROM python:3.10-slim
+
+WORKDIR /app
+
+RUN pip install --no-cache-dir fastapi uvicorn requests
+
+COPY . .
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8000"]