_collect_platform_info() reads sys_vendor, product_name/version,
product_serial, product_uuid and systemd-detect-virt in one SSH
round-trip. Result:
- Bare-metal: vendor from DMI sys_vendor (e.g. "Dell Inc."), model
from product_name (product_version preferred when it looks like a
marketing name), serial from product_serial.
- VM (KVM/VMware/Hyper-V/Xen/VirtualBox): vendor is the hypervisor
name, model is "Virtual Machine", serial prefers product_serial and
falls back to product_uuid (VM UUID).
- Container (Docker/LXC/Podman): vendor is the container runtime,
model is "Container".
- Junk DMI values ("To Be Filled By O.E.M." etc.) are filtered.
- Falls back to VENDOR = "Linux" when DMI is completely unavailable.
13 new unit tests covering all scenarios including SSH failure and
detect-virt unavailability.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
