better cloud config

conf/services.caddy

@@ -9,7 +9,12 @@ https://webmail.netig.net {
 }
 
 https://cloud.netig.net {
-	header Strict-Transport-Security max-age=31536000;
+    header Strict-Transport-Security "max-age=31536000"
+
+    # Découverte CalDAV et CardDAV
+    redir /.well-known/caldav /remote.php/dav/ 301
+    redir /.well-known/carddav /remote.php/dav/ 301
+
     reverse_proxy 127.0.0.1:9002
 }