chore: bump version to 2.0.x.20260730-SNAPSHOT

Author: loong10k

pom.xml

@@ -6,7 +6,7 @@
     <name>${project.groupId}:${project.artifactId}</name>
     <url>https://github.com/easy-4-java/${project.artifactId}</url>
     <description>OpenClaw external integration SDK (HTTP Gateway + local CLI)</description>
-    <version>2.0.x.20260630</version>
+    <version>2.0.x.20260730-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <!-- 开源协议采用 Apache 2.0 协议 -->