

### Fixed

- Fix `OrchestrationState` container and sync cursor handler to support `instance_spaces` list from the multi-instance-spaces feature — three related bugs: (1) `save_orchestration_state` remaps `instance_spaces` list to the `instance_space` string field via `json.dumps()`, with backward-compatible JSON parsing on load; (2) sync cursor handler now accepts both `instance_space` (singular) and `instance_spaces` (list), derives a stable cursor-state key, and uses an `In` filter to support multiple spaces