[MIRROR] Oppenheimer now starts with airplane mode enabled (#642)

* Oppenheimer now starts with airplane mode enabled (#81113)

## About The Pull Request
The nuclear operative medbot, Oppenheimer, now starts with airplane mode
enabled (aka, remote control disabled), so the presence of operatives on
the station Z-level is not immediately given away to AIs.


![image](https://github.com/tgstation/tgstation/assets/44104681/990ec84c-e7e8-4557-b036-3e840566e957)

Fixes #81105
## Why It's Good For The Game
It'd be pretty lame to have your stealth ops operation ruined because
you forgot to turn on airplane mode, no? I don't think this was
intentional by any means, seems like an oversight.
## Changelog
:cl:
fix: Oppenheimer, the nukie medbot, has been reprogrammed to use
Airplane Mode as a factory default. The station AI is no longer
immediately aware of his presence!
/:cl:

* Oppenheimer now starts with airplane mode enabled

---------

Co-authored-by: Vladin Heir <[email protected]>

code/modules/mob/living/basic/bots/medbot/medbot.dm

@@ -399,6 +399,7 @@
 	health = 40
 	maxHealth = 40
 	maints_access_required = list(ACCESS_SYNDICATE)
+	bot_mode_flags = BOT_MODE_ON | BOT_MODE_CAN_BE_SAPIENT | BOT_MODE_ROUNDSTART_POSSESSION
 	radio_key = /obj/item/encryptionkey/syndicate
 	radio_channel = RADIO_CHANNEL_SYNDICATE
 	damage_type_healer = HEAL_ALL_DAMAGE