fix Dockerfile

Dockerfile

@@ -1,6 +1,9 @@
 FROM ghcr.io/dbccccccc/ttsfm:latest
-# Expose port
-EXPOSE 8000
 
 WORKDIR /app/ttsfm-web
-CMD ["python", "-m", "waitress", "--host=0.0.0.0", "--port=8000", "app:app"]
+
+# Add health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
+  CMD curl -f http://localhost:7860/ || exit 1
+
+CMD ["python", "-m", "waitress", "--host=0.0.0.0", "--port=7860", "app:app"]