Replace the free-text vendor State with a closed 50-state list, add an
admin-only Service Area select below Notes, a Service Area advanced filter
(stable ids plus Unassigned) and a Service Area directory column.
Three divergences in the vendor detail drawer:
- The header rendered the company as a subtitle under a title that had
already fallen back to the company, printing the same name twice when
the row carried no technician. The subtitle is now dropped when it
would repeat the title.
- The Google Maps link appeared only when a URL was stored, unlabelled,
so an empty value left no trace of the field. It is now a labelled
field below Address that reads em-dash when unset, as every other
field in the panel does.
- The status sat immediately beside Total Jobs. It now sits opposite it
at the right edge, and reuses the vendors table's dot-plus-text badge
so the state never reads by colour alone.
