feat: 删除不再使用的模板文件和相关代码，优化项目结构

templates/project/database/database.go.tpl

@@ -5,22 +5,11 @@ import (
 	"database/sql"
 	"embed"
 	"fmt"
-
-	"github.com/go-jet/jet/v2/qrm"
 )
 
 //go:embed migrations/*
 var MigrationFS embed.FS
 
-type CtxDB struct{}
-
-func FromContext(ctx context.Context, db *sql.DB) qrm.DB {
-	if tx, ok := ctx.Value(CtxDB{}).(*sql.Tx); ok {
-		return tx
-	}
-	return db
-}
-
 func Truncate(ctx context.Context, db *sql.DB, tableName ...string) error {
 	for _, name := range tableName {
 		sql := fmt.Sprintf("TRUNCATE TABLE %s RESTART IDENTITY", name)