refactor: extract CurrentUser and CurrentUserID helpers

internal/server/user.go

@@ -0,0 +1,26 @@
+package server
+
+import (
+	"mal/internal/domain"
+
+	"github.com/gin-gonic/gin"
+)
+
+func CurrentUser(c *gin.Context) *domain.User {
+	if c == nil {
+		return nil
+	}
+	user, _ := c.Get("User")
+	if u, ok := user.(*domain.User); ok {
+		return u
+	}
+	return nil
+}
+
+func CurrentUserID(c *gin.Context) string {
+	u := CurrentUser(c)
+	if u == nil {
+		return ""
+	}
+	return u.ID
+}