{
  "$comment": "声音账候选/Canonical 合同（专题-09 §4.4/§5.1）。统计不足必须显式 unknown，样张必须由技能 1 grounding。",
  "type": "object",
  "required": ["schema_version", "work_ref", "narrator", "characters", "untouchable_verbal_tics", "protected_spans", "blacklist"],
  "properties": {
    "schema_version": {"type": "string", "enum": ["voice-baseline-v1"]},
    "work_ref": {"type": "string", "minLength": 1},
    "status": {"type": "string", "enum": ["candidate", "canonical"]},
    "narrator": {"type": "object"},
    "characters": {"type": "object"},
    "untouchable_verbal_tics": {"type": "object"},
    "protected_spans": {"type": "array", "items": {"type": "string"}},
    "blacklist": {"type": "array", "items": {"type": "string"}},
    "passing_samples": {"type": "array", "items": {"type": "string"}},
    "sources": {"type": "array"},
    "sampling": {"type": "object"},
    "unknown_fields": {"type": "array", "items": {"type": "string"}}
  }
}