{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://hr-automation.invalid/schemas/notification-template.schema.json",
  "title": "Notification Template Schema",
  "description": "Notification channel/template configuration. See docs/02-business-workflows/notification-catalog.md.",
  "type": "object",
  "required": ["templates"],
  "properties": {
    "templates": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["templateKey", "channels", "locale"],
        "properties": {
          "templateKey": { "type": "string", "examples": ["tan.pending_approval", "offer.sent", "green_form.issued"] },
          "channels": { "type": "array", "items": { "type": "string", "enum": ["email", "in_app", "calendar_invite"] } },
          "locale": { "type": "string", "default": "en-US" },
          "subjectTemplate": { "type": "string" },
          "bodyTemplateRef": { "type": "string", "description": "Reference to a content template, never inline PII" },
          "containsPii": { "type": "boolean", "default": false },
          "sendWindow": {
            "type": "object",
            "properties": {
              "startHourLocal": { "type": "integer", "minimum": 0, "maximum": 23 },
              "endHourLocal": { "type": "integer", "minimum": 0, "maximum": 23 }
            }
          }
        }
      }
    }
  }
}