Shift.kind existed in the schema and on the volunteer dashboard's
training filter but there was no way to create or edit a shift's
kind from the admin UI — every shift landed as the default CANVASS.
This wires the full loop:
Backend: createShiftSchema / updateShiftSchema / listShiftsSchema
and their series counterparts now accept a kind field. The shifts
service passes it through on create and filters by it on list.
Series shift templates propagate kind to every generated shift
instance so a training series produces training shifts.
Admin UI: the Create Shift button becomes a Dropdown.Button. The
main action creates a Canvass shift (default); the menu offers
Training, Event Staffing, Phone Bank, and Other. Each menu item
pre-fills the form's kind field. A kind Select appears at the top
of the form so admins can change it mid-creation or on edit. The
shifts table gets a color-coded Kind column and the toolbar gets
a kind filter.
Bunker Admin