Add optional OpenTelemetry Netty server instrumentation

- Update lys.version to 2026.04.14

- Add optional compileOnly dependency on opentelemetry-netty-4.1 in rbcs-server

- Add runtime guard to only activate instrumentation when OTel classes are on classpath

- Insert OTel combined handler after HttpServerCodec in the Netty pipeline

- Add requires-static JPMS directives for optional module support

- Add enableTelemetry config attribute to rbcs:server with default false

- Update Configuration DTO, XSD schema, Parser, Serializer, and all tests

.settings/org.eclipse.buildship.core.prefs

@@ -0,0 +1,13 @@
+arguments=--init-script /var/lib/opencode/.eclipse/2139989682_linux_gtk_x86_64/configuration/org.eclipse.osgi/58/0/.cp/gradle/init/init.gradle
+auto.sync=false
+build.scans.enabled=false
+connection.gradle.distribution=GRADLE_DISTRIBUTION(WRAPPER)
+connection.project.dir=
+eclipse.preferences.version=1
+gradle.user.home=
+java.home=/usr/lib/jvm/java-26-openjdk
+jvm.arguments=
+offline.mode=false
+override.workspace.settings=true
+show.console.view=true
+show.executions.view=true