stability-agent had no USER instruction and no user: in compose, running
as root and writing root-owned files to /opt/homelab bind-mount.
- Dockerfile: add useradd -m -u 1000 homelab + USER homelab
- docker-compose.yml: add user: "1000:1000" and group_add: ["999"]
(GID 999 = docker group on VPS) to retain docker.sock:ro access
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Oskar Kapala
