draupnir: enable Rust crypto so it can read commands in the encrypted management room

The management room is end-to-end encrypted, but Draupnir ran with
experimentalRustCrypto: false and Pantalaimon off, so it could post there
(its own messages are unencrypted) but never saw commands: its last reply
to a command was ~57 days ago, and `!draupnir rooms add …` sent from Lotus
on 2026-10-13 was ignored. The same command sent unencrypted worked at
once (✅, joined dco-memes-minecraft).

Merging deploys via lxc110-draupnir.sh, which restarts draupnir.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

draupnir/production.yaml

@@ -7,7 +7,11 @@ pantalaimon:
   username: draupnir
   password: ""
 
-experimentalRustCrypto: false
+# The management room (and most Lotus rooms) are end-to-end encrypted. Without
+# crypto Draupnir can post there but can't read commands, so `!draupnir …` was
+# silently ignored (LotusGuild/cinny audit, 2026-10-13). Rust crypto stores its
+# keys under dataPath.
+experimentalRustCrypto: true
 
 dataPath: "/data/storage"