fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.

fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.

fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.

fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.

fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.

fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.

fix: Use correct field name refresh_check_interval in dataset examples The dataset reference examples used `refresh: 1h` but the correct spicepod field name is `refresh_check_interval`. The `refresh` key is silently ignored by the YAML parser, meaning users copying this example would get no automatic data refresh.