chore: bump ACP Kotlin SDK to 0.18.1

Author: phodal

gradle/libs.versions.toml

@@ -105,7 +105,7 @@ filekit = "0.12.0"
 plantuml = "1.2025.10"
 mynlp = "4.0.0"
 a2aSdk = "0.3.0.Beta1"
-acpKotlinSdk = "0.15.3"
+acpKotlinSdk = "0.18.1"
 
 [libraries]
 # Kotlinx

mpp-idea/build.gradle.kts

@@ -410,7 +410,7 @@ project(":") {
         // ===== ACP (Agent Client Protocol) =====
         // Local ACP agent integration uses JSON-RPC over stdio.
         // Exclude kotlinx deps to avoid conflicts with IntelliJ's bundled versions.
-        implementation("com.agentclientprotocol:acp:0.15.3") {
+        implementation("com.agentclientprotocol:acp:0.18.1") {
             exclude(group = "org.jetbrains.kotlinx", module = "kotlinx-coroutines-core")
             exclude(group = "org.jetbrains.kotlinx", module = "kotlinx-coroutines-core-jvm")
             exclude(group = "org.jetbrains.kotlinx", module = "kotlinx-serialization-json")