Add minimal Ktor server

src/main/kotlin/de/ruvnox/tactical/Main.kt

@@ -0,0 +1,29 @@
+package de.ruvnox.tactical
+
+import io.ktor.http.ContentType
+import io.ktor.server.application.Application
+import io.ktor.server.engine.embeddedServer
+import io.ktor.server.netty.Netty
+import io.ktor.server.response.respondText
+import io.ktor.server.routing.get
+import io.ktor.server.routing.routing
+
+fun main() {
+    embeddedServer(
+        Netty,
+        port = 8080,
+        host = "0.0.0.0",
+        module = Application::module
+    ).start(wait = true)
+}
+
+fun Application.module() {
+    routing {
+        get("/health") {
+            call.respondText(
+                text = "RUVNOX Tactical server online",
+                contentType = ContentType.Text.Plain
+            )
+        }
+    }
+}