Use absolute Java path in container

Dockerfile

@@ -11,8 +11,9 @@ FROM eclipse-temurin:21-jre-alpine
 COPY --from=build /build/target/btcdata-standalone.jar /btcdata/btcdata-standalone.jar
 
 EXPOSE 4101
+ENV PATH="/opt/java/openjdk/bin:${PATH}"
 ENV BTCDATA_PORT=4101
 ENV CORS_ORIGIN=http://localhost:4000
 ENV JDBC_URL=jdbc:postgresql://postgres:5432/btcprod
 
-CMD ["java", "-jar", "/btcdata/btcdata-standalone.jar"]
+CMD ["/opt/java/openjdk/bin/java", "-jar", "/btcdata/btcdata-standalone.jar"]