added health check to the dockerfile

Dockerfile

@@ -13,4 +13,10 @@ COPY --chown=user ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
 COPY --chown=user . /app
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=180s \
+    CMD curl -f http://localhost:7860/health || exit 1
+
+
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]