{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "aps://shared/scheduling_problem",
  "title": "SchedulingProblem",
  "description": "中性排产问题 DTO：外部算法 skill 入参，不含内部 flex*/world 表结构。",
  "type": "object",
  "required": ["problemId", "startTime", "orders", "routings", "resources"],
  "properties": {
    "schemaVersion": { "type": "string", "default": "1.1", "description": "契约版本（M-D 契约版本化）" },
    "problemId": { "type": "string" },
    "track": { "type": "string", "enum": ["flex", "fixed"], "default": "flex" },
    "startTime": { "type": "string", "description": "排产起点 YYYY-MM-DD HH:MM" },
    "horizonHours": { "type": "number", "default": 168 },
    "orders": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["orderId", "productCode"],
        "properties": {
          "orderId": { "type": "string" },
          "productCode": { "type": "string" },
          "quantity": { "type": "number", "default": 1 },
          "dueDate": { "type": ["string", "null"] },
          "priority": { "type": "integer", "default": 5 }
        }
      }
    },
    "routings": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["productCode", "seq", "operationCode"],
        "properties": {
          "productCode": { "type": "string" },
          "seq": { "type": "integer" },
          "operationCode": { "type": "string" },
          "operationName": { "type": "string" },
          "stdTimePerUnit": { "type": "number", "default": 1 },
          "requireMold": { "type": "boolean", "default": false }
        }
      }
    },
    "resources": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["code"],
        "properties": {
          "code": { "type": "string" },
          "name": { "type": "string" },
          "capabilities": { "type": "array", "items": { "type": "string" } },
          "zone": { "type": ["string", "null"] }
        }
      }
    },
    "objectives": { "type": "object", "additionalProperties": { "type": "number" } },
    "constraints": { "type": "object", "additionalProperties": { "type": "boolean" } },
    "meta": { "type": "object" }
  }
}