flowchart LR
  subgraph Public["where-woof.com — public"]
    U[Finder\nscans QR/NFC] --> T["GET /t/:code\npublic tag page"]
    T -->|geolocation + fingerprint| SCAN["POST /t/:code/scan"]
    T -->|finders number| FB["POST /t/:code/contact"]
    O[Order /order\nStripe Payment Link] --> BUY[Stripe Checkout]
    C[Contact /contact] --> MAIL[SMTP SES]
  end

  subgraph Core["Go frontend .13:3020"]
    SCAN --> GATE{"shouldAlert\ngates"}
    GATE -->|paid sub + SMS pool + caps| REC[record scan]
    GATE -->|pass| SMS[SMSGlobal HTTP]
    FB -->|dedupe| SMS2[SMSGlobal HTTP]
  end

  subgraph Admin["admin.where-woof.com — Laravel/Filament .13:3031"]
    A[Staff manage\nusers/tags/orders/plans] --> PG
    WH["POST /webhooks/stripe"] -->|events| ORD[orders.status + tag transitions]
  end

  subgraph Data["Postgres .13:5434"]
    PG[(wherewoof DB\nusers tags scans\norders plans billing_events)]
  end

  SMS -->|SMS alert + map link| OWNER[Owner phone]
  SMS2 -->|finder number| OWNER2[Owner phone]
  BUY -->|"checkout.session.completed"| WH
  MAIL -->|"hello@where-woof.com"| INBOX[Inbox]
  REC --> PG
  PG --> A
  PG --> ORD