bootstrap SAM stack — S3 bucket + stub Lambda

functions/stub/handler.py

@@ -0,0 +1,8 @@
+"""Minimal handler used to bootstrap the SAM stack before the real
+sign_pdfs/ handler is wired in. Returns a fixed 200 stub response.
+"""
+import json
+
+
+def handler(event, context):
+    return {"statusCode": 200, "body": json.dumps({"stub": True})}