Function resolve_schedule_defaults_into_task 

pub(crate) fn resolve_schedule_defaults_into_task(
    task: &mut CreateFlowTask,
    prev_flow_info: Option<&FlowInfoValue>,
)

Resolve FlowScheduleConfig into task.eval_schedule.

This must be called in on_prepare after prev_flow_info is loaded so that CreateRequest and FlowInfoValue both see the same resolved defaults.

The function is idempotent: if task.eval_schedule is already Some, it returns immediately (important for procedure retry / dump-restore).

Schedule configuration is NOT read from task.flow_options (those keys are no longer user-facing options). For new flows, pure defaults are computed. For OR REPLACE, the previous typed config is preserved when interval+anchor are unchanged; otherwise defaults are recomputed.