Move generateLibVersion task to kotlin-sdk-core (#274)

fix #272 

## How Has This Been Tested?
Locally

## Breaking Changes
No

## Types of changes
- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

buildSrc/src/main/kotlin/mcp.multiplatform.gradle.kts

@@ -10,25 +10,6 @@ plugins {
     id("org.jetbrains.kotlinx.atomicfu")
 }
 
-// Generation library versions
-val generateLibVersion by tasks.registering {
-    val outputDir = layout.buildDirectory.dir("generated-sources/libVersion")
-    outputs.dir(outputDir)
-
-    doLast {
-        val sourceFile = outputDir.get().file("io/modelcontextprotocol/kotlin/sdk/LibVersion.kt").asFile
-        sourceFile.parentFile.mkdirs()
-        sourceFile.writeText(
-            """
-            package io.modelcontextprotocol.kotlin.sdk
-
-            public const val LIB_VERSION: String = "${project.version}"
-            
-            """.trimIndent()
-        )
-    }
-}
-
 kotlin {
     jvm {
         compilerOptions.jvmTarget = JvmTarget.JVM_1_8
@@ -41,10 +22,4 @@ kotlin {
 
     explicitApi = ExplicitApiMode.Strict
     jvmToolchain(21)
-
-    sourceSets {
-        commonMain {
-            kotlin.srcDir(generateLibVersion)
-        }
-    }
 }

kotlin-sdk-client/api/kotlin-sdk-client.api

@@ -1,7 +1,3 @@
-public final class io/modelcontextprotocol/kotlin/sdk/LibVersionKt {
-	public static final field LIB_VERSION Ljava/lang/String;
-}
-
 public class io/modelcontextprotocol/kotlin/sdk/client/Client : io/modelcontextprotocol/kotlin/sdk/shared/Protocol {
 	public fun <init> (Lio/modelcontextprotocol/kotlin/sdk/Implementation;Lio/modelcontextprotocol/kotlin/sdk/client/ClientOptions;)V
 	public synthetic fun <init> (Lio/modelcontextprotocol/kotlin/sdk/Implementation;Lio/modelcontextprotocol/kotlin/sdk/client/ClientOptions;ILkotlin/jvm/internal/DefaultConstructorMarker;)V

kotlin-sdk-core/build.gradle.kts

@@ -10,6 +10,25 @@ plugins {
     alias(libs.plugins.kotlinx.binary.compatibility.validator)
 }
 
+// Generation library versions
+val generateLibVersion by tasks.registering {
+    val outputDir = layout.buildDirectory.dir("generated-sources/libVersion")
+    outputs.dir(outputDir)
+
+    doLast {
+        val sourceFile = outputDir.get().file("io/modelcontextprotocol/kotlin/sdk/LibVersion.kt").asFile
+        sourceFile.parentFile.mkdirs()
+        sourceFile.writeText(
+            """
+            package io.modelcontextprotocol.kotlin.sdk
+
+            public const val LIB_VERSION: String = "${project.version}"
+            
+            """.trimIndent(),
+        )
+    }
+}
+
 kotlin {
     iosArm64()
     iosX64()
@@ -31,6 +50,7 @@ kotlin {
 
     sourceSets {
         commonMain {
+            kotlin.srcDir(generateLibVersion)
             dependencies {
                 api(libs.kotlinx.serialization.json)
                 api(libs.kotlinx.coroutines.core)

kotlin-sdk-server/api/kotlin-sdk-server.api

@@ -1,7 +1,3 @@
-public final class io/modelcontextprotocol/kotlin/sdk/LibVersionKt {
-	public static final field LIB_VERSION Ljava/lang/String;
-}
-
 public final class io/modelcontextprotocol/kotlin/sdk/server/KtorServerKt {
 	public static final fun MCP (Lio/ktor/server/application/Application;Lkotlin/jvm/functions/Function1;)V
 	public static final fun mcp (Lio/ktor/server/application/Application;Lkotlin/jvm/functions/Function1;)V