feat(07-03): add avatars, mail templates, and password-change command

Co-authored-by: Cursor <cursoragent@cursor.com>

models/user.go

@@ -34,6 +34,9 @@ type User struct {
 
 func (User) TableName() string { return "users" }
 
+// MorphName is the PHP class string stored in system_files.attachment_type.
+func (User) MorphName() string { return `Golem15\User\Models\User` }
+
 // Fillable is the register/update field list. Username, PIN, and GDPR columns
 // stay out of Phase 7 because no ported handler reads them.
 func (User) Fillable() []string {