Adds VOR_WORLDTREE_KEY + VOR_WORLDTREE_BASE + VOR_WORLDTREE_MODEL to vor's
compose environment with sane defaults. Empty key falls back to the
in-process MockWorldtree (the /mockup/ surface returns canned fixtures);
a real key issued by architect routes LLM calls at the demo Saga instance.
Key itself lives in ana-docker:/opt/docker/compose/vor/.env (not in the
repo).
Same shape as task-board: build-on-host from vh/vor, bind-mounted
persistence for sessions/ and responses/ (the user-published markdown
files), exposed at port 7879 (adjacent to task-board's 7878 since both
are claude-tooling sidecars).
Workflow template assumes the same DEPLOY_SSH_KEY + MGMT_REPO_TOKEN
secrets at user scope; nothing new to provision. Playbook accepts SHA
or branch refs (same fix as deploy-task-board.yaml) so manual runs
and CI runs share the same code path.
Centralized vs upstream-local: README documents the trade. Claude
fetches response markdown via /api/sessions/{id} JSON instead of a
local file read — the only API-flow change from the upstream README.