Returns a summary view of all squads with key aggregated metrics.
GET /api/squads/summary HTTP/1.1 Host: infa.idefi.ai Accept: */*
Squad summary list
[ { "id": "squad_001", "name": "Alpha Squad", "overallCompletionRate": 94.2 }, { "id": "squad_002", "name": "Beta Squad", "overallCompletionRate": 90.5 } ]