4.0.0 org.bsc.langgraph4j langgraph4j-parent 1.5.4 langgraph4j-spring-ai jar langgraph4j::spring::ai Spring AI integration utilities 17 17 UTF-8 1.0.0-M6 org.springframework.ai spring-ai-bom ${spring-ai.version} pom import org.bsc.langgraph4j langgraph4j-core ${project.version} org.springframework.ai spring-ai-core ${spring-ai.version} provided org.junit.jupiter junit-jupiter test