Adds dashboards/tracker-web/launchd/ (boot script + install.sh + README) so
tracker-web (:3003) auto-starts on login and restarts on crash/reboot, instead
of dying silently between sessions. Mirrors agent-queue/launchd: boot script
repairs PATH, loads JWT_SECRET from platform-service/.env (+ ~/.tracker-web.env
overrides), points at the local platform-service, and execs `pnpm dev`. plist
uses unconditional KeepAlive (restart on any exit, incl. a clean SIGTERM) + a 10s
throttle; install.sh frees :3003 first to avoid a clash with deploy-gigafactory.
Verified: killing the process respawns it and :3003 returns.
Generated with [Devin](https://cli.devin.ai/docs)
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
