feat: implement user profile retrieval with roles and permissions caching

internal/models/responses/auth_response.go

@@ -3,6 +3,25 @@ package responses
 type BodyRegisterResponse struct {
 	ID string `json:"id"`
 }
+
 type BodyLoginResponse struct {
 	Token string `json:"token"`
 }
+
+// RoleItem represents a role assigned to the user in the profile response.
+type RoleItem struct {
+	ID          string `json:"id"`
+	Name        string `json:"name"`
+	Description string `json:"description"`
+}
+
+// BodyProfileResponse is the response body for GET /profile.
+type BodyProfileResponse struct {
+	ID          string     `json:"id"`
+	Username    string     `json:"username"`
+	Email       string     `json:"email"`
+	FullName    string     `json:"fullName"`
+	IsActive    bool       `json:"isActive"`
+	Roles       []RoleItem `json:"roles"`
+	Permissions []string   `json:"permissions"`
+}