Prerelease 0.7.2-alpha1 (#278)

## Motivation and Context
- test new publish plugin
- add package.kt to kotlin-sdk umbrella module to resolve klib
generation errors during Maven publishing


## Breaking Changes
no

## Types of changes
- [ ] 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

Author: devcrocod

build.gradle.kts

@@ -6,7 +6,7 @@ plugins {
 
 allprojects {
     group = "io.modelcontextprotocol"
-    version = "0.7.2-SNAPSHOT"
+    version = "0.7.2-alpha1"
 }
 
 dependencies {

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

@@ -5,7 +5,6 @@ plugins {
 }
 
 mavenPublishing {
-    signAllPublications()
     publishToMavenCentral(automaticRelease = true)
 
     pom {

gradle/libs.versions.toml

@@ -20,7 +20,7 @@ kotest = "6.0.3"
 awaitility = "4.3.0"
 
 # Samples
-mcp-kotlin = "0.7.2-SNAPSHOT"
+mcp-kotlin = "0.7.2-alpha1"
 anthropic = "2.7.0"
 shadow = "8.1.1"
 

kotlin-sdk/src/commonMain/kotlin/io/modelcontextprotocol/kotlin/sdk/package.kt

@@ -0,0 +1,25 @@
+@file:Suppress("ktlint:standard:no-empty-class-body", "ktlint:standard:kdoc")
+/**
+ * # MCP Kotlin SDK
+ *
+ * A Kotlin Multiplatform implementation of the Model Context Protocol (MCP).
+ *
+ * This is the main SDK module that provides a convenient single dependency
+ * for all MCP functionality including:
+ *
+ * - Core protocol types and utilities ([kotlin-sdk-core])
+ * - Client implementations ([kotlin-sdk-client])
+ * - Server implementations ([kotlin-sdk-server])
+ *
+ * ## Usage
+ *
+ * Add this dependency to your project to get access to all MCP Kotlin SDK functionality:
+ *
+ * ```kotlin
+ * implementation("io.modelcontextprotocol:kotlin-sdk:$version")
+ * ```
+ *
+ * This will transitively include all core, client, and server components.
+ */
+
+package io.modelcontextprotocol.kotlin.sdk