The door's a heavily reinforced military bulkhead designed to resist hostile incursions. That said, the door wasn't designed to stop people getting out so Marga could possibly access the six separate heavy-duty locks located down the middle of the door with a little help removing the armoured panels.

Hacking the door would've required access to the terminal beside the door, and unfortunately Sevyn's been playing with that for so long it's ended up blowing up in her face, so hacking is no longer an option, unless some alternate interface can be spliced in. Be warned though, someone just detonated the console deliberately so any splice may be targeted by a similar attack.

Just to warn the team again, the shuttle bay's exposed to space at the moment, so someone will need to find a way to seal the outer doors before atmosphere could be restored.