Cron job that sends a daily summary of GitHub PR and issue activity to Slack.

1. Slack Webhook: Create a Slack app with incoming webhook and copy the URL
2. GitHub Token: Generate a personal access token with repo scope
3. Environment Variables:
   • SLACK_WEBHOOK_URL - Your Slack webhook URL
   • GITHUB_TOKEN - Your GitHub personal access token
   • GITHUB_OWNER - GitHub username/org (e.g., "octocat")
   • GITHUB_REPO - Repository name (e.g., "Hello-World")
4. Cron Schedule: Set in Val Town UI (recommended: 0 9 * * * for daily 9am)

Shows last 24 hours of activity:

• [open], [draft], [closed] PRs
• [open], [closed] issues