restructure: console→client-console, add admin-console skeleton, move docs to doc/

misc/demo.py

@@ -0,0 +1,14 @@
+import requests
+
+def main(event=None, context=None):
+    try:
+        r = requests.get('https://httpbin.org/get', timeout=3)
+        return {
+            "statusCode": 200,
+            "body": f"Demo OK: {r.status_code}, {r.json().get('url')}"
+        }
+    except Exception as e:
+        return {
+            "statusCode": 500,
+            "body": f"Error: {str(e)}"
+        }