feat: run 5 profile gateways in same container (ashley, claire, finn, matt, paul)

Launches each profile's Discord gateway as a background process
before the main gateway starts. Each logs to /opt/data/logs/gateway-<name>.log
with API server disabled to avoid port conflicts.

ai/compose.yml

@@ -32,7 +32,7 @@ services:
         - default
     container_name: hermes
     entrypoint: ["/bin/bash", "-c",
-      "bash /opt/data/hermes-tools/install.sh && exec /usr/bin/tini -g -- /opt/hermes/docker/entrypoint.sh \"$@\"",
+      "bash /opt/data/hermes-tools/install.sh && . /opt/hermes/.venv/bin/activate && uv pip install openai 'mautrix[encryption]' -q && mkdir -p /opt/data/logs && for p in ashley claire finn matt paul; do API_SERVER_ENABLED=false nohup hermes --profile $p gateway run >> /opt/data/logs/gateway-$p.log 2>&1 & done && exec /usr/bin/tini -g -- /opt/hermes/docker/entrypoint.sh \"$@\"",
       "hermes-entrypoint"]
     restart: always
     # Gateway run enables the internal API server on port 8642