Item notes get their own gear group, after Colors, with the existing
showNotes switch as the group's on/off in its title row. Its categories
come from Planning Center (GET /note-categories → the service type's
item_note_categories, by name, cached 10 min, an empty list rather than
an error when unconfigured or unreachable) and render as switches, three
across, all on until someone flips one; the tile reads an unset value as
every category, an array as exactly those, and a layout's old
comma-separated string as that list (blank = all).
The top bar template is a `template` field: one chip per placeholder
({series} {part} {serviceType} {date} {shortDate} {time} {length}
{items}) to drag or click into the text, with the help down to the
joining rules. Rendering is unchanged.
Text size leaves the gear window: the title bar's A− / A+ already size
the text and save it with the tile; the client falls back to 14 px when
nothing is saved.
tools/pco-mock.js serves item_note_categories (the categories its notes
use plus "Stage", which none does yet) so the route can be exercised.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
