feat: workerize external generation

deploy/container/docker-compose.loadtest.yml

@@ -69,6 +69,32 @@ services:
       retries: 12
       start_period: 20s
 
+  external-generation-worker:
+    build:
+      context: ../..
+      dockerfile: deploy/container/api-server.Dockerfile
+      target: api-runtime
+    cpus: "2.0"
+    mem_limit: 1g
+    env_file:
+      - ./api-server.env
+    environment:
+      GENARRATIVE_PROCESS_ROLE: external-generation-worker
+      GENARRATIVE_TRACKING_OUTBOX_DIR: /var/lib/genarrative/tracking-outbox-worker
+      OTEL_EXPORTER_OTLP_ENDPOINT: http://otelcol:4318
+      OTEL_SERVICE_NAME: genarrative-external-generation-worker
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    ulimits:
+      nofile:
+        soft: 4096
+        hard: 4096
+    depends_on:
+      spacetimedb:
+        condition: service_healthy
+      otelcol:
+        condition: service_started
+
   nginx:
     build:
       context: ../..