- add: ability to refresh the current session

- add: delete type to delete character request
- add: ability to update key in redis
- add: handle alive packet to refresh the session
- fix: delete now actually returns the time remaining correctly
- fix: character list now has the correct time until character deletion

proto/character.proto

@@ -35,6 +35,7 @@ message CreateCharacterResponse {
 message DeleteCharacterRequest {
     string user_id = 1;
     string char_id = 2;
+    int32 delete_type = 3;
 }
 
 message DeleteCharacterResponse {