Implements horizontally-scalable worker pool architecture:
- claudebox-sidecar: HTTP server for Claude Code, git, and SDLC ops
- rdev-worker: standalone worker binary polling rdev-api for tasks
- HTTP client adapter for sidecar communication
- HPA with custom Prometheus metrics for autoscaling
- ServiceMonitor for metrics scraping
Code review fixes applied:
- URL-encode query parameters in GitStatus (Critical #1)
- Remove unused shellQuote function (Critical #2)
- Use stdlib strings.Split/TrimSpace (Critical #3)
- Add version injection via ldflags (Warning #4)
- Add debug logging for swallowed git/sdlc errors (Warning #5, #6)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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