{
    "key": "schema",
    "schema": {
        "table": "pbl_runtime_event",
        "authority_module": "pbl_runtime_ext",
        "authority_path": "modules/pbl_runtime_ext/models/pbl_runtime_event.json",
        "owner": "pbls",
        "milestone": "M11b-2b",
        "decision_ref": "PM 裁决（任务 u0EO4x3ajntR41acaHj5H 问答）：选 B —— 以 pbl_runtime_ext 为唯一真源",
        "decision_basis": [
            "任务书原文：在 M11b-1 产出的 pbl_runtime_event 表基础上（依赖 key=schema），引用语义自任务定义起即为 B",
            "设计文档 docs/01-design/modules/entity.md 明确该表为 pbl_runtime_ext 侧、pbls 所有",
            "pbl_runtime_ext 侧 pbl_runtime_event 的 DDL + 3 个迁移文件 + dev-notes 均已 approved，为既定权威结构",
            "本任务不得反向修改 M11b-1 已批准产物"
        ],
        "structure_note": "本文件不再自带 summary/fields/indexes/codes 结构体；列集、主键、索引、分区、append-only 约束一律以 authority_path 指向的 pbl_runtime_ext 定义为准（25 列 / id long 自增 + (id, created_at) 复合主键 / 按月 RANGE COLUMNS 分区 / append-only 触发器）。world_sync 侧消费方代码（pbl_runtime_sql.py / pbl_runtime_tx.py::write_event_with_state / pbl_runtime_schema.py）以该 25 列权威结构为准，不再依赖旧的 12 列本地结构。",
        "consumers": [
            "modules/world_sync/world_sync/pbl_runtime_sql.py",
            "modules/world_sync/world_sync/pbl_runtime_tx.py::write_event_with_state",
            "modules/world_sync/world_sync/pbl_runtime_schema.py"
        ],
        "mirror_note": "apps/scense/pkgs/world_sync/models/pbl_runtime_event.json 是本文件的打包镜像，只由 modules/world_sync/scripts/sync_models_mirror.py 生成，禁止手工双写；一致性由 modules/world_sync/scripts/m11b2b_selftest.py 的 sha256 断言守护。"
    }
}