{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "vocab-1.1 word entry",
  "description": "词库条目。在原有 vocab 记录上新增 source.source_id（必填）血缘字段；保留 licence（英式）记录级标注。",
  "type": "object",
  "required": ["id", "level", "headword", "pos", "origin", "source", "gloss"],
  "properties": {
    "id": { "type": "string" },
    "level": { "type": "string", "enum": ["A2", "B1"] },
    "headword": { "type": "string" },
    "pos": { "type": "array", "items": { "type": "string" } },
    "pos_notes": { "type": ["string", "null"] },
    "examples": { "type": ["array", "null"], "items": { "type": "object" } },
    "phrases": { "type": ["array", "null"] },
    "topics": { "type": ["array", "null"] },
    "origin": { "type": "string" },
    "source": {
      "type": "object",
      "required": ["source_id"],
      "properties": {
        "source_id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9-]*$" },
        "source_item_id": { "type": ["string", "null"] },
        "file": { "type": ["string", "null"] },
        "url": { "type": ["string", "null"] },
        "publisher": { "type": ["string", "null"] },
        "licence": { "type": "string", "enum": ["official-free", "cc-by", "cc-by-sa", "cc-nc-education", "restricted", "internal-only", "llm-generated", "unknown"] }
      }
    },
    "gloss": {
      "type": "object",
      "required": ["zh", "source", "licence"],
      "properties": {
        "zh": { "type": "string" },
        "phonetic": { "type": ["string", "null"] },
        "phonetic_source": { "type": ["string", "null"] },
        "source": { "type": "string" },
        "licence": { "type": "string", "enum": ["official-free", "cc-by", "cc-by-sa", "cc-nc-education", "restricted", "internal-only", "llm-generated", "unknown"] }
      }
    }
  }
}