Auth: Org Invite and Team API SignedInUser interfacing (#73085)

* fix ngalert Evaluate sig change

* interface for teams and org invites

* Update pkg/api/org_invite.go

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

---------

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

pkg/services/auth/identity/requester.go

@@ -11,16 +11,42 @@ const (
 )
 
 type Requester interface {
+	// GetDisplayName returns the display name of the active entity.
+	// The display name is the name if it is set, otherwise the login or email.
+	GetDisplayName() string
+	// GetEmail returns the email of the active entity.
+	// Can be empty.
+	GetEmail() string
+	// GetIsGrafanaAdmin returns true if the user is a server admin
 	GetIsGrafanaAdmin() bool
+	// GetLogin returns the login of the active entity
+	// Can be empty.
 	GetLogin() string
-	GetOrgID() int64
-	GetPermissions() map[string][]string
-	GetTeams() []int64
-	GetOrgRole() roletype.RoleType
+	// GetNamespacedID returns the namespace and ID of the active entity.
+	// The namespace is one of the constants defined in pkg/services/auth/identity.
 	GetNamespacedID() (string, string)
+	// GetOrgID returns the ID of the active organization
+	GetOrgID() int64
+	// GetOrgRole returns the role of the active entity in the active organization.
+	GetOrgRole() roletype.RoleType
+	// GetPermissions returns the permissions of the active entity.
+	GetPermissions() map[string][]string
+	// DEPRECATED: GetTeams returns the teams the entity is a member of.
+	// Retrieve the teams from the team service instead of using this method.
+	GetTeams() []int64
+	// DEPRECATED: GetOrgName returns the name of the active organization.
+	// Retrieve the organization name from the organization service instead of using this method.
+	GetOrgName() string
+
+	// IsNil returns true if the identity is nil
+	// FIXME: remove this method once all services are using an interface
 	IsNil() bool
 
 	// Legacy
+
+	// GetCacheKey returns a unique key for the entity.
+	// Add an extra prefix to avoid collisions with other caches
 	GetCacheKey() (string, error)
+	// HasUniqueId returns true if the entity has a unique id
 	HasUniqueId() bool
 }