graph TD
    subgraph Organization["🔑 Organization"]
        direction TB
        subgraph ZoneProd["🧩 Zone: Production"]
            direction TB
            P_Events[⚡ Events]
            P_Flows[🔄 Flows]
            P_Events --> P_Flows
        end
        
        subgraph ZoneStaging["🧩 Zone: Staging"]
            direction TB
            S_Events[🧪 Events]
            S_Flows[🔄 Flows]
            S_Events --> S_Flows
        end
    end

    subgraph FlowEngine["⚙️ Execution Engine"]
        Logic{Logic & Rules}
        Approval[👤 Approval]
        Audit[📝 Audit]
    end

    subgraph Outputs["📤 Actions & Ledger"]
        Ledger[(💰 Ledger)]
        Webhook[🌐 Webhook]
        Notify[✉️ Notify]
    end

    P_Flows --> Logic
    S_Flows --> Logic
    
    Logic --> Approval
    Approval --> Audit
    Audit --> Webhook
    Audit --> Notify
    Audit --> Ledger

    classDef zone fill:#f9f9f9,stroke:#333,stroke-width:1px;
    class ZoneProd,ZoneStaging zone;

graph TB
    subgraph "Developer Experience"
        SDK[SDK: Node/Go/Python]
        CLI[Sapliy CLI]
        UI[Fintech UI Components]
    end

    subgraph "Automation Layer"
        FlowBuilder[Flow Builder UI]
    end

    subgraph "Core Platform - fintech-ecosystem"
        Gateway[API Gateway :8080]
        Auth[Auth Service :8081]
        Payments[Payments :8082]
        Ledger[Ledger :8083]
        Zones[Zone Manager]
        FlowEngine[Flow Engine]
        Events[Event Bus]
    end

    subgraph "Infrastructure"
        PG[(PostgreSQL)]
        Kafka[(Kafka/Redpanda)]
        Redis[(Redis)]
        RMQ[(RabbitMQ)]
    end

    SDK --> Gateway
    CLI --> Gateway
    UI --> Gateway
    FlowBuilder --> Gateway

    Gateway --> Auth
    Gateway --> Zones
    Gateway --> Payments
    Gateway --> Ledger

    Payments --> Events
    Events --> FlowEngine
    FlowEngine --> Kafka
    FlowEngine --> RMQ

    Auth --> PG
    Payments --> PG
    Ledger --> PG
    Zones --> PG