- raise UI tape cap to 500 and keep newest-first ordering - add jump-to-top with missed counter + revised card layout styling - add compute deliver policy/reset envs to prevent JetStream backlog replay - update .env.example and README for new defaults/config
- add .env.example with ingest/config defaults - warn on missing Alpaca/Databento envs and remove hardcoded Alpaca defaults - document .env setup in README - allow .env.example to be tracked