OPS: Spotless formatter added

application/build.gradle.kts

@@ -4,6 +4,7 @@
 
 plugins {
     id("org.springframework.boot")
+    id("com.diffplug.spotless") version "6.25.0"
 }
 
 dependencies {
@@ -58,3 +59,20 @@ testing {
         }
     }
 }
+
+spotless {
+    // optional: limit format enforcement to just the files changed by this feature branch
+    // ratchetFrom("origin/main")
+
+    kotlin {
+        // by default the target is every '.kt' and '.kts` file in the java sourcesets
+        ktfmt()    // has its own section below
+        licenseHeader(
+            """
+            // SPDX-FileCopyrightText: Contributors to the GXF project
+            //
+            // SPDX-License-Identifier: Apache-2.0
+        """.trimIndent(), "package "
+        )
+    }
+}