- Add libolm-dev system dep (required by mautrix[encryption])
- Add mautrix[encryption] + openai pip packages to build
- These were previously installed inline at container startup and
persisted via the fragile venv volume mount (now removed)
The volume mount /mnt/HoardingCow_docker_data/Hermes/venv overrides the
container's built-in .venv with whatever is on the host. On a fresh start
or after a clean build, an empty/missing venv directory causes entrypoint.sh
line 62 (source .venv/bin/activate) to fail with set -e.
The Docker image already builds a complete venv — persisting it on the host
is unnecessary and fragile.
