erDiagram
  TENANT {
    string id
    string name
    string plan
    string localeDefault
    string timezone
    string status
    string createdAt
    string updatedAt
  }
  USER {
    string id
    string tenantId
    string name
    string email
    string passwordHash
    string role
    string locale
    string theme
    string directionPreference
    number persianNumerals
  }
  BUILDING {
    string id
    string tenantId
    string name
    string buildingType
    string address
    string city
    string country
    number floors
    number basementFloors
    string occupancyProfile
  }
  ELEVATOR {
    string id
    string tenantId
    string buildingId
    string code
    string elevatorType
    string serviceType
    string brand
    string model
    number nominalSpeed
    number capacityKg
  }
  ALERT {
    string id
    string time
    string tenantId
    string buildingId
    string elevatorId
    string alertType
    string severity
    string status
    string message
    string assignedTo
  }
  TICKET {
    string id
    string time
    string tenantId
    string buildingId
    string elevatorId
    string title
    string description
    string priority
    string status
    string assignedTechnicianId
  }
  TECHNICIAN {
    string id
    string tenantId
    string name
    string phone
    string email
    number active
    string territory
    string createdAt
    string updatedAt
  }
  SERVICEVISIT {
    string id
    string time
    string tenantId
    string buildingId
    string elevatorId
    string ticketId
    string technicianId
    string visitTime
    string actionsTaken
    string partsReplaced
  }
  REPORTEXPORT {
    string id
    string tenantId
    string reportType
    string filtersJson
    string fileUrl
    string generatedAt
  }
  SIMULATIONPROFILE {
    string id
    string label
    string buildingProfile
    string elevatorProfile
    string trafficProfile
    string environmentProfile
    string degradationProfile
    string faultProfile
    string networkProfile
    string storyline
  }
  FAULTCATALOG {
    string id
    string faultCode
    string subsystem
    string severity
    string probableCause
    string recommendedAction
  }
  EVENTCATALOG {
    string id
    string eventType
    string severity
    string category
    string description
  }
  SCENARIOSTATE {
    string id
    string code
    string status
    number rate
    number scenarioIntensity
    string updatedAt
  }
  AUDITRECORD {
    string id
    string time
    string actor
    string action
    string payloadJson
  }