Initial commit: Odin editor client + Kotlin daemon prototype

Native SDL3 editor written in Odin with a piece-table buffer core,
backed by a Kotlin/JVM daemon speaking newline-delimited JSON over
localhost TCP for Gradle import, Kotlin/Java diagnostics, and
heuristic completion/hover/definition/references/rename.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

daemon/build.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    kotlin("jvm") version "2.2.21"
+    application
+}
+
+import org.gradle.api.file.DuplicatesStrategy
+
+group = "dev.nativeeditor"
+version = "0.1.0"
+
+kotlin {
+    jvmToolchain(21)
+}
+
+dependencies {
+    implementation(gradleApi())
+    implementation("org.jetbrains.kotlin:kotlin-compiler-embeddable:2.2.21")
+}
+
+application {
+    mainClass.set("dev.nativeeditor.daemon.MainKt")
+}
+
+tasks.withType<AbstractArchiveTask>().configureEach {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}