Add dynamic analyst runtime updates and deployment guides

deploy/systemd/README.md

@@ -0,0 +1,47 @@
+# systemd Units
+
+This directory contains recommended `systemd` unit templates for the current
+split-service production topology.
+
+## Recommended Topology
+
+- `agent_service` on `127.0.0.1:8000`
+- `trading_service` on `127.0.0.1:8001`
+- `news_service` on `127.0.0.1:8002`
+- `runtime_service` on `127.0.0.1:8003`
+- `nginx` serves `frontend/dist` and proxies `/api/*` + `/ws`
+- `runtime_service` spawns the run-scoped Gateway subprocess on demand
+- skill execution runs with `SKILL_SANDBOX_MODE=docker`
+
+## Install
+
+Adjust these placeholders before installing:
+
+- `/opt/bigtime/app` -> repository root on the server
+- `/opt/bigtime/app/.venv/bin/python` -> Python interpreter
+- `/etc/bigtime/bigtime.env` -> shared environment file
+- `bigtime` -> service user
+
+Then copy units:
+
+```bash
+sudo mkdir -p /etc/bigtime
+sudo cp .env /etc/bigtime/bigtime.env
+
+sudo cp deploy/systemd/bigtime-*.service /etc/systemd/system/
+sudo systemctl daemon-reload
+sudo systemctl enable --now bigtime-agent.service
+sudo systemctl enable --now bigtime-trading.service
+sudo systemctl enable --now bigtime-news.service
+sudo systemctl enable --now bigtime-runtime.service
+```
+
+## Frontend
+
+Recommended production frontend mode:
+
+- build with `cd frontend && npm ci && npm run build`
+- let `nginx` serve `frontend/dist` directly
+
+The repository also contains `backend.apps.frontend_service`, but for
+production the lower-complexity path is static hosting via `nginx`.