Sub-ticket of MARS-93 sa-teachers-cascade over-flags needsManualReview on unresolvable ayudante (recurring warn). Scope needsManualReview to JTP slot only — ayudante is informational per JTP-only-grading rule; + make the cascade warn idempotent (skip re-emit when SA already needsManualReview) so one batch \!= N pager hits · mars