[GET] /api/zapier/call_ended/list

{
  "call_id": "call_abc123",
  "from": "+15551234567",
  "to": "+15557654321",
  "external_number": "+15551234567",
  "greetmate_number": "+15557654321",
  "direction": "outbound",
  "start_time_utc": "2025-12-01 10:23:45",
  "start_time_account": "2025-12-01 05:23:45",
  "end_time_utc": "2025-12-01 10:31:12",
  "end_time_account": "2025-12-01 05:31:12",
  "transcription": "Hello...",
  "summary": "Lead asked for pricing.",
  "variables": {"lead_name": "Jane Doe"},
  "team_id": 42
}