chore(kiloclaw): increase pairing exec timeouts and run channels concurrently

[pandemicsyn]

Summary

• Increase Fly exec timeouts across the board: default execCommand timeout from 10s → 60s, pairing list from 20s → 60s, and pairing approve from 15s → 60s to avoid premature timeouts on slow Fly machines.
• Refactor openclaw-pairing-list.js from sequential synchronous execFileSync calls to concurrent async execution via Promise.allSettled, with a per-channel timeout of 45s. This makes the script faster when multiple channels are configured and more resilient to individual channel failures.

[kiloconnect]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Notes

Clean refactor that improves the pairing list script in two key ways:

1. Parallel execution — Channels are now queried concurrently via Promise.allSettled instead of sequentially with execFileSync, reducing wall-clock time when multiple channels are configured.
2. Increased timeouts — Child process timeout raised to 45s, Fly exec timeouts raised to 60s (from 10–20s), with proper layering (child < Fly exec) so the script terminates gracefully before Fly kills it.
3. Graceful error handling — Per-channel failures no longer abort the entire list; successful channels still return results. Top-level catch provides a safe fallback.

The default timeout change in execCommand (10→60s) has no impact on current callers since both pass explicit values, but future callers will inherit the higher default.

Files Reviewed (3 files)

• kiloclaw/openclaw-pairing-list.js — sync→async refactor with parallel execution
• kiloclaw/src/durable-objects/kiloclaw-instance.ts — timeout increases (20→60, 15→60)
• kiloclaw/src/fly/client.ts — default timeout increase (10→60)