Backend: update data model

backend/datamodel.plantuml

@@ -5,7 +5,7 @@ class Contact {
     +birth_date: Date
 }
 
-class Company {
+class Organisation {
     +name: str
     +description: str
 }
@@ -17,66 +17,59 @@ class Role {
 }
 
 Contact "1" --> "*" Role
-Company "1" --> "*" Role
+Organisation "1" --> "*" Role
 
 class PlatformProfile {
     +platform: str
     +url: URL
-}
-
-class PlatformProfileLink {
     +from: Date
     +to: Date
 }
 
-Contact "1" --> "*" PlatformProfileLink
-Company "1" --> "*" PlatformProfileLink
-PlatformProfile "1" --> "*" PlatformProfileLink
+Contact "1" --> "*" PlatformProfile : platform_profiles
+Organisation "1" --> "*" PlatformProfile : platform_profiles
 
-class PostalAddress {
+class MailAddress {
+    +type: str
     +name: str
     +street1: str
     +street2: str
     +zipcode: str
     +city: str
     +country: str
-}
-
-class PostalAddressLink {
-    +type: str
     +from: Date
     +to: Date
 }
 
-Contact "1" --> "*" PostalAddressLink
-Company "1" --> "*" PostalAddressLink
-PostalAddress "1" --> "*" PostalAddressLink
+Contact "1" --> "*" MailAddress : mail_addresses
+Organisation "1" --> "*" MailAddress : mail_addresses
 
 class PhoneNumber {
     +phone_number: str
-}
-
-class PhoneNumberLink {
     +type: str
     +from: Date
     +to: Date
 }
 
-Contact "1" --> "*" PhoneNumberLink
-Company "1" --> "*" PhoneNumberLink
-PhoneNumber "1" --> "*" PhoneNumberLink
+Contact "1" --> "*" PhoneNumber : phone_numbers
+Organisation "1" --> "*" PhoneNumber : phone_numbers
 
 class EmailAddress {
-    +email_address: str
-}
-
-class EmailAddressLink {
+    +address: str
     +type: str
     +from: Date
     +to: Date
 }
 
-Contact "1" --> "*" EmailAddressLink
-Company "1" --> "*" EmailAddressLink
-PhoneNumber "1" --> "*" EmailAddressLink
+Contact "1" --> "*" EmailAddress : email_addresses
+Organisation "1" --> "*" EmailAddress : email_addresses
+
+class ContactLog {
+    +status: str
+    +date: Date
+}
+
+Contact "1" --> "*" ContactLog : contacts
+Organisation "1" --> "*" ContactLog : contacts
+
 @enduml
\ No newline at end of file