Add Dev Command

src/main/kotlin/commands/dev/DevCommand.kt

@@ -185,13 +185,20 @@ class DevCommand : CliktCommand("dev") {
         ).directory(serverDir).start()
 
         val input = launch {
+            while (process.isAlive) {
                 process.inputStream.transferTo(System.out)
             }
+        }
         val error = launch {
+            while (process.isAlive) {
                 process.errorStream.transferTo(System.err)
             }
+        }
         val console = launch {
-            System.`in`.transferTo(process.outputStream)
+            val write = process.outputStream.writer()
+            while (process.isAlive) {
+                readlnOrNull()?.let { write.write(it + "\n") }
+            }
         }
         process.waitFor()
         input.cancel()