SLACK_BOT_TOKEN=xoxb-your-slack-bot-token
SLACK_SIGNING_SECRET=your-slack-signing-secret
REDIS_URL=redis://localhost:6379
BROWSERBASE_API_KEY=your-browserbase-api-key
BROWSERBASE_RESEARCH_AGENT_ID=
# Required only when deploying outside Vercel.
AI_GATEWAY_API_KEY=