ccaaa41fec
Restructure the docs ahead of sharing the project for others to self-host. The README is now a focused get-it-running path (overview, architecture, prereqs, quick start, operational notes, security, backup/restore). Moved the fuller feature tour, the maintainer pre-built-image release flow, and the Gluetun VPN guide into a new docs/DEPLOYMENT.md, cross-linked both ways. The pre-built-image section is now labelled a maintainer process with a LYRA_REGISTRY override so a self-hoster can point at their own registry (or just build from source). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>