chore: remove agenticDigestTweet worker (#3835)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: idoshamun

.infra/common.ts

@@ -311,10 +311,6 @@ export const workers: Worker[] = [
     topic: 'api.v1.post-visible',
     subscription: 'api.post-added-user-notification',
   },
-  {
-    topic: 'api.v1.post-visible',
-    subscription: 'api.agentic-digest-tweet',
-  },
   {
     topic: 'api.v1.post-highlighted',
     subscription: 'api.major-highlight-tweet',