* perf(up): parallelize agent startup with worker pool and channel-based collection
- Run daemon, deacon, mayor, and rig prefetch all in parallel (4-way concurrent init)
- Use fixed worker pool instead of goroutine-per-task for bounded concurrency
- Replace mutex-protected maps with channel-based result collection (zero lock contention)
- Pre-allocate maps with known capacity to reduce allocations
- Use string concatenation instead of fmt.Sprintf for display names
- Reduce `gt up` startup time from ~50s to ~10s for towns with multiple rigs
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* fix(lint): fix errcheck and misspell issues in orphans.go
- Check error return from fmt.Scanln calls
- Fix "Cancelled" -> "Canceled" spelling
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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