Initial commit: Spicy CDK automation framework

Jenkins shared library and CDK constructs for AWS infrastructure.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

vars/spicyDefaults.groovy

@@ -0,0 +1,18 @@
+/**
+ * Default pipeline properties for Spicy CDK pipelines
+ */
+
+def call(Map args) {
+  return args + [
+    /*
+     * Properties for the Jenkins Pipeline. Does not allow concurrent builds by default.
+     * If you'd like to schedule a job using a cron syntax, set pipelineProperties to:
+     *
+     *     [disableConcurrentBuilds(), pipelineTriggers([cron('H 13 * * *')])]
+     */
+    pipelineProperties: [disableConcurrentBuilds()].plus(args.pipelineProperties ?: []),
+  ]
+}
+
+return this
+