Check whether a PCB version is ready to be quoted and manufactured at a given quantity.

The response lists observations (problems, warnings, and notes about the design) and the
available actions that remain possible given those observations. This is the same check
the MacroFab platform uses on the PCB's Quote page.

To check whether a PCB can be instantly quoted and ordered online, look for auto_quote in
available_actions. If it is missing, the observations whose prevents_actions include
auto_quote explain why.

Approved Vendor Lists and part selection

Each line of the bill of materials is sourced through its approved vendor list (AVL); see the
Approved Vendor List endpoints. A BOM line counts as selected when its AVL contains at least
one part.

Only lines with populate set are checked. By default each line is checked with its
sourcing_default: macrofab lines as turnkey, customer lines as customer-supplied. To check
the PCB as if some lines were sourced differently, use the POST form of this endpoint and pass
part_origins.