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/components/forms/round-type-settings.tsx

@@ -260,6 +260,31 @@ function FilteringSettings({
         )}
       </div>
 
+      {/* Auto-Filter on Close */}
+      <div className="space-y-4">
+        <div className="flex items-center justify-between">
+          <div>
+            <Label>Auto-Run Filtering on Close</Label>
+            <p className="text-sm text-muted-foreground">
+              Automatically start filtering when this round is closed
+            </p>
+          </div>
+          <Switch
+            checked={settings.autoFilterOnClose}
+            onCheckedChange={(v) =>
+              onChange({ ...settings, autoFilterOnClose: v })
+            }
+          />
+        </div>
+        <Alert>
+          <Info className="h-4 w-4" />
+          <AlertDescription>
+            When enabled, closing this round will automatically run the configured filtering rules.
+            Results still require admin review before finalization.
+          </AlertDescription>
+        </Alert>
+      </div>
+
       {/* Display Options */}
       <div className="space-y-4">
         <h5 className="text-sm font-medium">Display Options</h5>