feat(WP-0004): railiance deployment & service ops

- Dockerfile (multi-stage, uv-based, slim runtime)
- .dockerignore
- docker-compose.railiance.yml (Temporal + NATS + PG, no Elasticsearch)
- GET /health endpoint (db + temporal probes, 200/503)
- .env.example (complete env var reference)
- Makefile: migrate, sync-all, dev-up/down, railiance-up/down,
  start-worker, start-api, start-event-router, help targets;
  extracted sync-event-types Python to scripts/sync_event_types.py
- SIGTERM graceful shutdown in worker.py and event_router.py
- docs/runbook.md: Railiance deployment section

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/runbook.md

@@ -213,6 +213,78 @@ uv run alembic history    # show full migration history
 
 ---
 
+## Railiance Deployment
+
+### Pre-requisites
+- Docker ≥ 24 with Compose v2 (`docker compose` not `docker-compose`)
+- ≥ 4 GB RAM available (Temporal server takes ~1 GB)
+- Ports available: 4222 (NATS), 7233 (Temporal gRPC), 8010 (API), 8080 (Temporal UI),
+  9090 (Prometheus metrics)
+
+### First-time setup
+
+```bash
+# 1. Copy and edit the env file — fill in all secrets and URLs
+cp .env.example .env
+
+# 2. Build the image and start all services
+make railiance-up
+
+# 3. Wait for health (retry until 200)
+curl -sf http://localhost:8010/health   # → {"status":"ok","db":true,"temporal":true}
+
+# 4. Register Temporal search attributes (one-time per namespace)
+docker exec actcore-temporal temporal operator search-attribute create \
+  --name ActivityId   --type Keyword \
+  --name ActivityName --type Keyword \
+  --address temporal:7233
+
+# 5. Load event types and activity definitions
+make sync-all
+```
+
+### Upgrade procedure
+
+```bash
+git pull
+make railiance-up   # rebuilds image, restarts changed services
+make migrate        # apply any new migrations (safe to run when none pending)
+curl -sf http://localhost:8010/health
+```
+
+### Health verification
+
+```bash
+# API health (db + temporal probes)
+curl -s http://localhost:8010/health | python3 -m json.tool
+
+# Temporal UI
+open http://localhost:8080
+
+# Prometheus metrics
+curl -s http://localhost:9090/metrics | head -20
+```
+
+### Common ops
+
+```bash
+# Follow logs for one service
+docker compose -f docker-compose.railiance.yml logs -f actcore-worker
+
+# Restart one service without bringing down others
+docker compose -f docker-compose.railiance.yml restart actcore-api
+
+# Re-run migrations manually
+docker compose -f docker-compose.railiance.yml run --rm actcore-migrate
+
+# Wipe and reset (DESTRUCTIVE — deletes all volumes including DB data)
+make railiance-down
+docker volume rm activity-core_temporal-db-data activity-core_app-db-data activity-core_nats-data
+make railiance-up
+```
+
+---
+
 ## Wipe and restart dev stack
 
 ```bash