chores: refactor struct and structure project

internal/domain/staff/spec.go

@@ -0,0 +1,28 @@
+package staffdomain
+
+type Staff struct {
+	ID             string `json:"id"`
+	Name           string `json:"name"`
+	ProfilePicture string `json:"profile_picture"`
+	Email          string `json:"email"`
+	Password       string `json:"password"`
+}
+
+type StaffRegister struct {
+	Email          string `json:"email" validate:"required"`
+	Password       string `json:"password" validate:"required"`
+	Name           string `json:"name" validate:"required"`
+	ProfilePicture string `json:"profile_picture"`
+}
+
+type StaffProfile struct {
+	ID             string `json:"id"`
+	Name           string `json:"name"`
+	ProfilePicture string `json:"profile_picture"`
+	Email          string `json:"email"`
+}
+
+type StaffLogin struct {
+	Email    string `json:"email" validate:"required"`
+	Password string `json:"password" validate:"required"`
+}