chore(jetbrains): pin IPGP snapshot

packages/kilo-jetbrains/gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 intellij-platform = "2026.1"
-intellij-gradle-plugin = "2.16.1-SNAPSHOT"
+intellij-gradle-plugin = "2.16.1-20260623.221413-11"
 intellij-rpc-plugin = "2.3.20-RC2-0.1"
 kotlin-jvm-plugin = "2.3.20"
 kotlin-serialization-plugin = "2.3.20"

packages/kilo-jetbrains/settings.gradle.kts

@@ -6,8 +6,19 @@ include("backend")
 
 pluginManagement {
     includeBuild("build-tasks")
+    resolutionStrategy {
+        eachPlugin {
+            if (requested.id.id == "org.jetbrains.intellij.platform") {
+                useModule("org.jetbrains.intellij.platform:intellij-platform-gradle-plugin:${requested.version}")
+            }
+        }
+    }
     repositories {
-        maven("https://central.sonatype.com/repository/maven-snapshots/")
+        maven("https://central.sonatype.com/repository/maven-snapshots/") {
+            content {
+                includeGroup("org.jetbrains.intellij.platform")
+            }
+        }
         mavenCentral()
         gradlePluginPortal()
         maven("https://packages.jetbrains.team/maven/p/ij/intellij-dependencies/")