chore: bump version to 0.4.0 and fix fatJar task dependency

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: rlaope-ai

argus-cli/build.gradle.kts

@@ -19,6 +19,7 @@ tasks.jar {
 
 // Fat JAR for standalone execution
 tasks.register<Jar>("fatJar") {
+    dependsOn(tasks.jar, ":argus-core:jar")
     archiveClassifier.set("all")
     duplicatesStrategy = DuplicatesStrategy.EXCLUDE
     manifest {

gradle.properties

@@ -1,3 +1,3 @@
-argusVersion=0.3.0
+argusVersion=0.4.0
 nettyVersion=4.1.104.Final
 junitVersion=5.10.1