feat(dates): wire pruneDeadTokens into onDateHistoryCreated

functions/src/dates/onDateHistoryCreated.ts

@@ -1,6 +1,7 @@
 import * as functions from 'firebase-functions'
 import * as admin from 'firebase-admin'
 import { recipientInQuietHours } from '../notifications/quietHours'
+import { pruneDeadTokens } from '../notifications/pruneTokens'
 
 /**
  * Fires when a date is logged as completed (`couples/{coupleId}/date_history/{dateId}` created). Nudges
@@ -58,4 +59,5 @@ export const onDateHistoryCreated = functions.firestore
     results.forEach((r, i) => {
       if (r.status === 'rejected') console.warn(`[onDateHistoryCreated] FCM failed for ${tokens[i]}:`, r.reason)
     })
+    await pruneDeadTokens(db, partnerId, tokens, results)
   })