Improve rdd proc

devserver

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+set -e
+
+cleanup() {
+    echo "Stopping dev server..."
+    kill "$SERVER_PID" 2>/dev/null || true
+    exit
+}
+
+trap cleanup INT TERM
+
+echo "Starting Spring Boot dev server..."
+mvn spring-boot:run &
+SERVER_PID=$!
+
+echo "Dev server PID: $SERVER_PID"
+echo "Watching for file changes..."
+
+while kill -0 "$SERVER_PID" 2>/dev/null; do
+    find src/main/java -name "*.java" |
+        entr -d mvn -q compile
+done
+
+echo "Dev server exited."
+exit 0