docs: record deployment automation and Daytona workflow

[teckedd-code2save]

Summary

• document GroundControl's own GitHub Actions release path
• document the deployment-scoped merge-to-deploy path proven with RentAWeekend
• record the verified revisions and durable operation evidence
• define Daytona as an early-access, isolated reproduction capability rather than a production runtime
• capture the VPS resource-contention lesson, safety rules, enablement checklist, and remaining distribution hardening
• link the runbook from the documentation index

Safety

This PR is documentation-only. Merging it will still trigger the repository's production Build & Deploy workflow because that workflow runs on every push to main.