Coach Schedule: same This week/Next week/month-divider agenda grouping

Extracted the grouping algorithm (previously duplicated between mobile.views.
CalendarView and management.views.EventListView's own "List" mode) into a
shared events.services.calendar.agenda_groups, and wired it into both --
plus mobile.coach_views.CoachScheduleView, the coach app's own upcoming-
events screen, which had no grouping at all before (one flat card). All
three now read identically and can't drift apart.

Also: give each management event-list row's kind badge a fixed width, so
titles start at the same horizontal position regardless of whether the row
says "Game" or "Tournament".

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

mobile/coach_views.py

@@ -26,6 +26,7 @@ from controlpanel.messages import notify
 from events.models import Attendance, Event, EventSeries, Lineup, LineupSelection, Location, Opponent
 from events.services import generate_occurrences
 from events.services.attendance import member_attendance_counts, record_check_in
+from events.services.calendar import agenda_groups
 from events.services.lineup import UNAVAILABLE_STATUSES, cancel_scheduled_publish, publish_lineup, schedule_lineup_publish, toggle_selection
 from events.tasks import notify_new_event
 from management.forms import EventForm, EventSeriesForm, LocationForm, NewsForm, OpponentForm
@@ -1104,15 +1105,19 @@ class CoachScheduleView(CoachScopeMixin, LoginRequiredMixin, TemplateView):
     straight into the coach-relevant action -- Bench attendance for a
     practice, the Line-up for a game -- rather than mobile:event_detail (the
     Member-shell RSVP page a coach browsing their own team's schedule has no
-    use for)."""
+    use for). Grouped into This week/Next week/by-month dividers via events.
+    services.calendar.agenda_groups -- the same shared grouping mobile.views.
+    CalendarView (the member app's own Calendar) and management.views.
+    EventListView's "List" mode use, so all three read the same way."""
 
     template_name = "mobile/coach/schedule.html"
     screen_title = _("Schedule")
     active_tab = "coach_schedule"
 
     def get_context_data(self, **kwargs):
-        events = []
+        this_week, next_week, later_months = [], [], []
         if self.active_team is not None:
             events = list(Event.objects.filter(teams=self.active_team, cancelled=False, start__gte=timezone.now()).order_by("start"))
+            this_week, next_week, later_months = agenda_groups(events)
 
-        return super().get_context_data(events=events, **kwargs)
+        return super().get_context_data(this_week=this_week, next_week=next_week, later_months=later_months, **kwargs)