%% 代答排除匹配引擎架构图
%% 来源：增量设计-知识库迭代-开发任务分解-20260712.md §4.1

graph TB
    subgraph "代答排除匹配引擎"
        Engine[ExclusionService<br/>匹配引擎入口]
        Chain[ExclusionChain<br/>责任链调度]
        
        subgraph "策略模式 - 4种匹配器"
            M1[KeywordMatcher<br/>关键词匹配]
            M2[RegexMatcher<br/>正则匹配]
            M3[IntentMatcher<br/>意图匹配]
            M4[CategoryMatcher<br/>分类排除]
        end
        
        Engine --> Chain
        Chain --> M1
        Chain --> M2
        Chain --> M3
        Chain --> M4
    end
    
    subgraph "外部依赖"
        Dify[Dify 意图识别<br/>复用审批意图链路]
        TriageDB[triage_sessions<br/>分诊结果]
        RuleDB[(exclusion_rules)]
        LogDB[(exclusion_logs)]
    end
    
    M3 -->|调用| Dify
    M4 -->|查询| TriageDB
    Engine -->|读取规则| RuleDB
    Engine -->|记录命中| LogDB
    
    style M1 fill:#dbeafe,stroke:#3b82f6
    style M2 fill:#fce7f3,stroke:#ec4899
    style M3 fill:#ede9fe,stroke:#8b5cf6
    style M4 fill:#dcfce7,stroke:#07C160