events: timeline command hangs — missing LIMIT or stream EOF

[namastex888]

Summary

Dogfood baseline found genie events timeline can hang until timeout instead of returning a bounded event timeline.

Repro

Run genie events timeline <id> against a live dogfood event or conversation id.

Expected

The command returns a finite timeline promptly, with either a default LIMIT or a clear explicit streaming mode.

Actual

The command hangs/timeouts.

Impact

Timeline is a first-line structured observability primitive for orchestration. A hanging command blocks release validation and forces lower-quality debugging surfaces.

[namastex888]

Closed by #1484 — bounded scan + --limit/--since flags. genie events timeline <id> now returns 10 events in 0.689s (was 30s+ hang on 60M-row audit_events). Verified empirically.