Implements the feed daemon goroutine that:
- Tails ~/gt/.events.jsonl for raw events
- Filters by visibility tag (keeps feed/both, drops audit)
- Deduplicates repeated done events from same actor
- Aggregates sling events when multiple occur in window
- Writes curated events to ~/gt/.feed.jsonl with summaries
The curator runs as a goroutine in the gt daemon, starting when
the daemon starts and stopping gracefully on shutdown.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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