Get workspace evidence health

{  "architecture_snapshot_id": "afa8647c-57ea-4899-85d3-92a7dd133667",  "blocking_uncertainty_count": 0,  "entity_kind_coverage": [    {      "coverage": "string",      "entity_kind": "string",      "expectation_basis": "source_family_presence",      "expected_minimum": 0,      "observed_count": 0,      "source_families": [        "string"      ],      "status": "observed"    }  ],  "entity_kind_coverage_rate": "0",  "generated_at": "2019-08-24T14:15:22Z",  "healthy_source_count": 0,  "items": [    {      "age_seconds": 0,      "alert_level": "none",      "audit_id": "78c04fa6-cfb4-46a0-9aa5-3681ba4f3897",      "authorization_health": "healthy",      "collection_health": "complete",      "content_ref": "string",      "coverage": "string",      "coverage_basis": "expected_signals",      "error_category": "authorization",      "error_code": "string",      "expected_signal_count": 0,      "freshness_health": "current",      "health": "healthy",      "latest_run_id": "01a26ba9-be7a-49f1-b8f1-c778060a6d27",      "latest_run_status": "string",      "mcp_ingestion_id": "e483dfbe-1f30-4fa8-8989-0c8f1530c157",      "missing_signals": [        "string"      ],      "observed_at": "2019-08-24T14:15:22Z",      "observed_signal_count": 0,      "owner_route": "connector_initiator",      "owner_user_id": "65139110-7c3c-4777-b692-80c218be3b9d",      "recovery_action": "string",      "repository_id": "b349ae61-b973-4c6c-a5e0-89183ba99ff3",      "retry_after_seconds": 0,      "retry_mode": "automatic",      "signals": [        "string"      ],      "source_key": "string",      "source_kind": "string",      "source_name": "",      "stale_after_seconds": 0,      "status": "string",      "transport_health": "healthy",      "uncertainties": [        {          "blocking": false,          "code": "missing_source",          "detail": "string",          "evidence_ids": [            "973ab5a6-b373-447d-ab9d-bdb660b35afc"          ],          "observed_at": "2019-08-24T14:15:22Z",          "resolution_summary": "string",          "resolved_at": "2019-08-24T14:15:22Z",          "scope": "source",          "source_keys": [            "string"          ],          "state": "open",          "subject_key": "string"        }      ]    }  ],  "missing_signal_count": 0,  "overall": "healthy",  "slo": {    "classified_error_count": 0,    "classified_error_rate": "1",    "current_source_rate": "0",    "failed_run_count": 0,    "run_count": 0,    "terminal_run_count": 0,    "terminal_run_rate": "0",    "window_hours": 24  },  "snapshot_id": "163831af-8c1b-4992-a9cf-88c6306604c0",  "source_count": 0,  "source_coverage": "string",  "uncertainties": [    {      "blocking": false,      "code": "missing_source",      "detail": "string",      "evidence_ids": [        "973ab5a6-b373-447d-ab9d-bdb660b35afc"      ],      "observed_at": "2019-08-24T14:15:22Z",      "resolution_summary": "string",      "resolved_at": "2019-08-24T14:15:22Z",      "scope": "source",      "source_keys": [        "string"      ],      "state": "open",      "subject_key": "string"    }  ],  "uncertainty_count": 0}