feat: add calendar scheduling feature for agent teams

- Implemented FindCalendarSchedules method in agentTeamScheduleService to retrieve schedules within a specified time range.
- Added new API endpoint fetchAgentTeamScheduleCalendar to fetch schedules for the calendar view.
- Created ScheduleCalendar component to display agent team schedules in a calendar format with drag-and-drop functionality for moving and resizing schedules.
- Updated EditDialog component to support deleting schedules and handling default values for new entries.
- Enhanced DashboardAgentTeamSchedulesPage to toggle between calendar and list views, and to load calendar data based on selected week.
- Added tests for FindCalendarSchedules to ensure correct schedule retrieval and validation of time ranges.

web/lib/api/admin.ts

@@ -1092,6 +1092,14 @@ export function fetchAgentTeamSchedules(
   )
 }
 
+export function fetchAgentTeamScheduleCalendar(
+  query: Record<string, string | number | undefined>
+) {
+  return request<AdminAgentTeamSchedule[]>(
+    `/api/dashboard/agent-team-schedule/calendar${toQueryString(query)}`
+  )
+}
+
 export function fetchAgentTeamSchedule(id: number) {
   return request<AdminAgentTeamSchedule>(`/api/dashboard/agent-team-schedule/${id}`)
 }