MM-51321 Refactor audit log application. (#22481)

* Refactor audit log application.

* Fix incorrect API Usage for Auditing

* Fixups.

* Rename Object audit to Auditable. Some small fixes.

---------

Co-authored-by: Daniel Schalla <daniel@schalla.me>

model/switch_request.go

@@ -13,6 +13,15 @@ type SwitchRequest struct {
 	LdapLoginId    string `json:"ldap_id"`
 }
 
+func (o *SwitchRequest) Auditable() map[string]interface{} {
+	return map[string]interface{}{
+		"current_service": o.CurrentService,
+		"new_service":     o.NewService,
+		"email":           o.Email,
+		"ldap_login_id":   o.LdapLoginId,
+	}
+}
+
 func (o *SwitchRequest) EmailToOAuth() bool {
 	return o.CurrentService == UserAuthServiceEmail &&
 		(o.NewService == UserAuthServiceSaml ||