添加 端到端主流程.md
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端到端主流程.md
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端到端主流程.md
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sequenceDiagram
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autonumber
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actor Admin as Admin(管理员)
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participant UI as 前端UI
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participant API as 后端API(服务)
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participant PG_Task as PostgreSQL(kg_task)
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participant Ext as 外部抽取服务
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participant PG_M as PostgreSQL(kg_entity_mention/kg_relation_mention)
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participant PG_Cand as PostgreSQL(kg_*_candidate)
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participant PG_Conf as PostgreSQL(kg_*_confirm)
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participant Audit as PostgreSQL(audit_log)
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participant SyncW as 同步Worker
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participant Neo4j as Neo4j(投影)
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Note over Admin,PG_Task: 任务创建与门禁(3.1.3.1 / 3.1.3.1.1)
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Admin->>UI: 配置任务Schema(ext_entity_codes / ext_relation_codes)
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UI->>API: 提交创建任务请求(创建门禁检查)
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API->>PG_Task: 创建kg_task(status=created,持久化tenant上下文)
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API-->>UI: 返回task信息(external_task_id在触发抽取时获取)
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Note over API,Ext: 任务运行期(status: running → finished/failed)
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API->>Ext: 触发抽取(外部异步执行,分配external_task_id)
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Ext-->>PG_Task: 任务状态更新(running → finished/failed)(由系统对接,P0仅约束状态口径)
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Note over Ext,API: 抽取结果回调(5.1 回调/导入)
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Ext->>API: POST /api/callback/extract(external_task_id, records...)
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API->>PG_Task: 基于external_task_id反查kg_task(仅接受status=finished)
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API->>PG_Task: 行级锁/门禁(单消费者/重复通知幂等处理)
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API->>PG_M: 同事务写入Mention
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activate API
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API->>API: Schema白名单裁决 + Task生命周期过滤\n→ mention.status=active/invalid(3.2.4)
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API->>Audit: 写审计(filtered_by_schema / callback_*)
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deactivate API
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API-->>Ext: 回调处理结果(成功/冲突)
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Note over Admin,PG_Cand: 候选生成(3.3 / 5.3)
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Admin->>UI: 在任务详情发起“由mentions生成candidate”
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UI->>API: POST /api/candidates/from-mentions
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API->>PG_M: 仅读取status=active 且 task非revoking/revoked 的mentions\n(统一可见性过滤 2.11)
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API->>PG_Cand: 单事务聚合去重 + 规范化 + 决策canonical\n→ candidate.status=pending(3.3.4)
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API-->>UI: 返回候选数据
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Note over Admin,PG_Conf: 审核确认至Confirm(3.4 / 5.3)
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Admin->>UI: 在候选审核页选择通过(approve)
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UI->>API: POST /api/candidates/{id}/approve
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API->>PG_Conf: Confirm Upsert(复合键/UID)→ status=CONFIRMED\n统一置 sync_status='PENDING'(3.4/4.3)
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API->>PG_Cand: 将被锁定的候选设为locked(locked_by_confirm=true)
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API->>Audit: 写审计(review.accept / merge 等)
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API-->>UI: 返回审核结果
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Note over Admin,PG_Conf: 发布(6.1 / 5.4)
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Admin->>UI: 发起发布(publish)
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UI->>API: POST /api/publish?task_id=...(影响预估/阻断策略)
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API->>PG_Conf: 事务内将相关Confirm置 status=PUBLISHED\n统一置 sync_status='PENDING'
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API->>Audit: 写审计(publish)
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API-->>UI: 返回发布受理结果
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Note over SyncW,Neo4j: 同步器执行(4.3 指令集)
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SyncW->>PG_Conf: 扫描 sync_status IN ('PENDING','FAILED')
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SyncW->>PG_Conf: 原子置 SYNCING(加锁避免并发)
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alt status=PUBLISHED
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SyncW->>Neo4j: 幂等MERGE/SET(节点/关系及属性)
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else status=ROLLED_BACK
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SyncW->>Neo4j: 物理删除(DETACH DELETE)
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end
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SyncW->>PG_Conf: 写回 sync_status='SYNCED' 或 'FAILED'
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SyncW->>Audit: 写审计(action='sync',记录结果)
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