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

rbcs-cli/build.gradle

@@ -30,7 +30,6 @@ configurations {
         transitive = false
         canBeConsumed = true
         canBeResolved = true
-        visible = true
     }
 
     configureNativeImageImplementation {
@@ -51,6 +50,7 @@ dependencies {
     configureNativeImageImplementation project
     configureNativeImageImplementation project(':rbcs-server-memcache')
     configureNativeImageImplementation project(':rbcs-server-redis')
+//    configureNativeImageImplementation project(':rbcs-server-otel')
 
     implementation catalog.jwo
     implementation catalog.slf4j.api
@@ -59,9 +59,7 @@ dependencies {
     implementation project(':rbcs-client')
     implementation project(':rbcs-server')
 
-//    runtimeOnly catalog.slf4j.jdk14
     runtimeOnly catalog.logback.classic
-//    runtimeOnly catalog.slf4j.simple
     nativeImage project(':rbcs-server-memcache')
     nativeImage project(':rbcs-server-redis')
 
@@ -142,7 +140,12 @@ Provider<JlinkTask> jlinkTaskProvider = tasks.named(JlinkPlugin.JLINK_TASK_NAME,
         'net.woggioni.rbcs.server.memcache',
         'net.woggioni.rbcs.server.redis',
         'ch.qos.logback.classic',
-        'jdk.crypto.ec'
+        'jdk.crypto.ec',
+//        'io.opentelemetry.api',
+//        'io.opentelemetry.instrumentation.netty_4_1',
+//        'io.opentelemetry.sdk.autoconfigure',
+//        'io.opentelemetry.instrumentation.logback_appender_1_0',
+//        'io.opentelemetry.extension.trace.propagation'
     ]
     compressionLevel = 2
     stripDebug = false

rbcs-cli/src/configureNativeImage/kotlin/net/woggioni/rbcs/cli/graal/GraalNativeImageConfiguration.kt

@@ -120,10 +120,11 @@ object GraalNativeImageConfiguration {
             val serverConfiguration = Configuration(
                 "127.0.0.1",
                 serverPort,
+                null,
                 false,
                 emptyList(),
+                false,
                 100,
-                null,
                 Configuration.EventExecutor(true),
                 Configuration.RateLimiter(
                     false, 0x100000, 10