Guard against show version outputs that start with "Image stamp:" or
other non-banner lines — return ("", "") when the first line doesn't
begin with HP/HPE/Aruba.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
parse_system_info() now extracts HPE/HP J-codes (e.g. J9298A, J9777A)
from the System Model field and returns them as part_number separately.
The model name is cleaned of the J-code and surrounding punctuation:
"HP J9298A Switch 2520G-8-PoE" → model="HP 2520G-8-PoE Switch", pn="J9298A"
"HP2530-8G Switch(J9777A)" → model="HP2530-8G Switch", pn="J9777A"
get_facts() includes part_number in the returned dict so NetOrk can
store it on Device.part_number and pass it to NetBox device types.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
