jellyseerr: add user modification methods

addded permissions get/set before realizing it already comes as part of
the User object. Split User attributes that will be templated into
UserTemplate struct, which User inherits. ApplyTemplateToUser takes a
UserTemplate, while ModifyUser takes a plain map with some typed fields
(display name and email, for now).

jellyseerr/models.go

@@ -2,8 +2,15 @@ package jellyseerr
 
 import "time"
 
+type UserField string
+
+const (
+	FieldDisplayName UserField = "displayName"
+	FieldEmail       UserField = "email"
+)
+
 type User struct {
-	Permissions                int       `json:"permissions"`
+	UserTemplate                         // Note: You can set this with User.UserTemplate = value.
 	Warnings                   []any     `json:"warnings"`
 	ID                         int       `json:"id"`
 	Email                      string    `json:"email"`
@@ -11,23 +18,27 @@ type User struct {
 	JellyfinUsername           string    `json:"jellyfinUsername"`
 	Username                   string    `json:"username"`
 	RecoveryLinkExpirationDate any       `json:"recoveryLinkExpirationDate"`
-	UserType                   int       `json:"userType"`
 	PlexID                     string    `json:"plexId"`
 	JellyfinUserID             string    `json:"jellyfinUserId"`
 	JellyfinDeviceID           string    `json:"jellyfinDeviceId"`
 	JellyfinAuthToken          string    `json:"jellyfinAuthToken"`
 	PlexToken                  string    `json:"plexToken"`
 	Avatar                     string    `json:"avatar"`
-	MovieQuotaLimit            any       `json:"movieQuotaLimit"`
-	MovieQuotaDays             any       `json:"movieQuotaDays"`
-	TvQuotaLimit               any       `json:"tvQuotaLimit"`
-	TvQuotaDays                any       `json:"tvQuotaDays"`
 	CreatedAt                  time.Time `json:"createdAt"`
 	UpdatedAt                  time.Time `json:"updatedAt"`
 	RequestCount               int       `json:"requestCount"`
 	DisplayName                string    `json:"displayName"`
 }
 
+type UserTemplate struct {
+	Permissions     Permissions `json:"permissions"`
+	UserType        int         `json:"userType"`
+	MovieQuotaLimit any         `json:"movieQuotaLimit"`
+	MovieQuotaDays  any         `json:"movieQuotaDays"`
+	TvQuotaLimit    any         `json:"tvQuotaLimit"`
+	TvQuotaDays     any         `json:"tvQuotaDays"`
+}
+
 type PageInfo struct {
 	Pages    int `json:"pages"`
 	PageSize int `json:"pageSize"`
@@ -39,3 +50,9 @@ type GetUsersDTO struct {
 	Page    PageInfo `json:"pageInfo"`
 	Results []User   `json:"results"`
 }
+
+type permissionsDTO struct {
+	Permissions Permissions `json:"permissions"`
+}
+
+type Permissions int