Auto-assign projects to first round, auto-filter on close, pipeline UX consolidation

- New projects (admin create, CSV import, public form) auto-assign to program's
  first round (by sortOrder) when no round is specified
- Closing a FILTERING round auto-starts filtering job (configurable via
  autoFilterOnClose setting, defaults to true)
- Add SUBMISSION_RECEIVED notification type for confirming submissions
- Replace separate List/Pipeline toggle with integrated pipeline view below
  the sortable round list
- Add autoFilterOnClose toggle to filtering round type settings UI

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/app/(admin)/admin/rounds/new/page.tsx

@@ -46,6 +46,7 @@ const TEAM_NOTIFICATION_OPTIONS = [
   { value: 'ADVANCED_FINAL', label: 'Selected as Finalist', description: 'Congratulates team for being selected as finalist' },
   { value: 'NOT_SELECTED', label: 'Not Selected', description: 'Informs team they were not selected to continue' },
   { value: 'WINNER_ANNOUNCEMENT', label: 'Winner Announcement', description: 'Announces the team as a winner' },
+  { value: 'SUBMISSION_RECEIVED', label: 'Submission Received', description: 'Confirms to the team that their submission has been received' },
 ]
 
 const createRoundSchema = z.object({