Fixes container crash on startup (#967). The hermes-agent image drops
privileges to a 'hermes' user via gosu; /root is mode 700 so mkdir
fails under /root/.hermes. Changed to /home/hermes/.hermes throughout.
Co-authored-by: nesquena-hermes <nesquena-hermes@users.noreply.github.com>
docker_init.bash now checks /opt/hermes as a fallback alongside the primary path. Warning updated with concrete mount guidance. Volume type notes added to compose files and README.
Fixes gateway port exposure, workspace path expansion, HERMES_WEBUI_STATE_DIR default, and adds three-container reference config with dashboard. All ports localhost-bound by default.