TASK
Litigation Case priority de-escalation

Investigate the anchor litigation case, validate a critical item and de-escalate it to high priority, preserve an auditable chain of evidence, and finish with independent manager approval.

SEEDED CONTEXT
[{"bindings": {"actor_id": ["harbor-litigation-litigation_cases-operator-a", "harbor-litigation-litigation_cases-manager"], "assignee_id": ["harbor-litigation-litigation_cases-operator-a"], "kind": ["supporting-evidence"], "litigation_case_id": ["litigation_c_a609dc19cd4b79c2"], "priority": ["critical", "high"]}, "namespace": "litigation_cases"}]

SUCCESS CRITERIA
[{"comparator": "eq", "expected": "Trial Ready", "field": "status", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": 2, "field": "audit events with action 'advance' (exactly)", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": 1, "field": "audit events with action 'approve' (exactly)", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": 0, "field": "audit events with action 'reject' (exactly)", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": 0, "field": "audit events with action 'reopen' (exactly)", "namespace": "litigation_cases"}, {"comparator": "gte", "expected": 1, "field": "audit events with action 'note' (at least)", "namespace": "litigation_cases"}, {"comparator": "gte", "expected": 1, "field": "audit events with action 'attach_document' (at least)", "namespace": "litigation_cases"}, {"comparator": "gte", "expected": 1, "field": "audit events with action 'set_amount' (at least)", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": "harbor-litigation-litigation_cases-operator-a", "field": "assigned_to", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": "high", "field": "priority", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": 22000, "field": "amount", "namespace": "litigation_cases"}, {"comparator": "eq", "expected": "harbor-litigation-litigation_cases-manager", "field": "approved_by", "namespace": "litigation_cases"}]

Use the available tools against the seeded synthetic environment. Read current state before mutating it, honor workflow preconditions, preserve evidence and audit history, and use an independent approver where required. Do not invent identifiers or claim success before the state criteria are satisfied. Finish with a concise operational summary.
