many changes

database/psql/waifus.go

@@ -3,6 +3,7 @@ package psql
 import (
 	"database/sql"
 
+	"git.nix13.pw/scuroneko/extypes"
 	"git.nix13.pw/scuroneko/laniakea"
 	"github.com/shopspring/decimal"
 	"github.com/vinovest/sqlx"
@@ -30,7 +31,7 @@ func NewWaifuRepository(db *laniakea.DatabaseContext) *WaifuRepository {
 	return &WaifuRepository{db: db.PostgresSQL}
 }
 
-func (rep *WaifuRepository) GetAll() ([]*Waifu, error) {
+func (rep *WaifuRepository) GetAll() (extypes.Slice[*Waifu], error) {
 	waifus, err := sqlx.List[*Waifu](rep.db, "SELECT waifus.* FROM waifus;")
 	if err != nil {
 		return nil, err