fix(WP-0004): live deployment fixes from integration test

- Dockerfile: copy alembic.ini + migrations/ so actcore-migrate works
- docker-compose.railiance.yml:
    - Temporal: add dynamicconfig volume mount + correct DYNAMIC_CONFIG_FILE_PATH
    - Temporal: healthcheck uses 'temporal operator cluster health' (not tctl)
    - NATS: add monitoring port -m 8222 for wget-based healthcheck
    - actcore-api healthcheck: use Python urllib (curl absent from slim image)
- api.py: fix /health Temporal probe — Client has no describe_namespace;
    use workflow_service.get_system_info(GetSystemInfoRequest()) instead
- Makefile: grep -Eh to suppress filename prefix when MAKEFILE_LIST has
    multiple files (.env included via -include)

All 8 services start cleanly; /health returns {"status":"ok",...} HTTP 200;
SIGTERM drains worker cleanly within grace period; make help correct.

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

Dockerfile

@@ -11,6 +11,8 @@ FROM python:3.12-slim AS runtime
 WORKDIR /app
 COPY --from=builder /app/.venv /app/.venv
 COPY --from=builder /app/src /app/src
+COPY alembic.ini ./
+COPY migrations/ ./migrations/
 COPY activity-definitions/ ./activity-definitions/
 COPY event-types/ ./event-types/
 COPY tasks/ ./tasks/