refactor platform logic modules

backend/api/internal/logic/common/base.go

@@ -1,4 +1,4 @@
-// Package platform 提供平台总后台的同步 HTTP 业务逻辑。
+// Package common provides shared HTTP and persistence helpers for business logic modules.
 package common
 
 import (
@@ -12,9 +12,16 @@ import (
 	"git.apinb.com/heqiapp/platforms/backend/api/internal/impl"
 	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
 	"github.com/gin-gonic/gin"
+	"golang.org/x/crypto/bcrypt"
 	"gorm.io/gorm"
 )
 
+// PasswordHash creates the shared password representation used by account modules.
+func PasswordHash(password string) (string, error) {
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	return string(hash), err
+}
+
 // FilterFields keeps only explicitly allowed persistence fields.
 func FilterFields(values map[string]any, allowedFields []string) gin.H {
 	allowed := make(map[string]struct{}, len(allowedFields))