List collections

Example response

{
  "data": {
    "collections": [
      "team_docs",
      "engineering"
    ],
    "message": "Success",
    "sub_tenant_ids": [
      "sub_tenant_4567",
      "sub_tenant_8901"
    ]
  },
  "error": {
    "code": "DATABASE_NOT_FOUND",
    "message": "Database not found"
  },
  "meta": {
    "collection": "team_docs",
    "database": "acme_corp",
    "deprecation": [
      {
        "deprecated": true,
        "deprecated_field": "tenant_id",
        "deprecated_since": "2.0.1",
        "message": "tenant_id is deprecated; use database instead.",
        "preferred_field": "database"
      }
    ],
    "latency_ms": 12.3,
    "request_id": "9d13aef4-02f4-4e73-8c62-4c2601d04f9d",
    "source_type": "file",
    "sub_tenant_id": "sub_tenant_4567",
    "tenant_id": "tenant_1234"
  },
  "success": true
}