As has come up recently double yellow lines apply to the boundary of the carriageway in most cases - what isn't quite clear there is what the boundary is - if that area is designated for pedestrian through traffic it probably applies upto that fence/railings - which would even make leaning a motorbike up against the fence not legal parking.
Regardless though it would be very hard for her to prove that was your fault unless she could prove some kind of negligence on your part that meant it was impossible for her to avoid the accident.
Regardless though it would be very hard for her to prove that was your fault unless she could prove some kind of negligence on your part that meant it was impossible for her to avoid the accident.