Rear mech hanger, spare gear cable (for repairs on side of trail) as you don’t want to have to ride all the way back to van/chalet without gears. Not sure you’ll need that many pads, I tend to get through 2 pairs max per month in the Alps. But then it’s never a bad thing to be over stocked.
That’s about it really, I tend to chuck a spare pair of tyres in the van when I drive out each year and then some tools for evening fettling.
Personally I think people get carried away “Alps proofing” their bikes. All I do is make sure it’s all serviced and working and switch to 2 ply tyres. If you’re riding lots of rocky trails maybe some protection under down tube and BB (old tube or cut off from tyre.
Tom KP