Per the workflow realignment, the department owns inquiry resolution
end-to-end. The PX-side respond modal and its 'Response to Patient'
tile button are removed; the 'Resolve' button in the 'Department has
responded' banner now POSTs directly to inquiry_change_status (with a
confirm dialog), which already enforces the contact_status gate.
The inquiry_respond view and URL are kept for backward compatibility
but no UI surfaces them. Two regression tests lock in the new behavior:
- showRespondModal JS function and respondModal div are gone
- Resolve form posts directly to inquiry_change_status with status=resolved
The inquiry_department_response view excluded dept managers even though
they can resolve the inquiry via inquiry_change_status. Now both actions
use the same handling_department_id predicate so forwarding locks the
old department out consistently.
