fix: 上传图片后不再自动跳转，由用户手动点击返回配方卡片

Co-Authored-By: YoYo <yoyo@euphon.net>

frontend/src/views/MyDiary.vue

@@ -428,18 +428,7 @@ async function handleUpload(type, event) {
     if (res.ok) {
       if (type === 'logo') brandLogo.value = base64
       else if (type === 'bg') brandBg.value = base64
-      else if (type === 'qr') {
-        brandQrImage.value = base64
-        // If user came here from a recipe card, navigate back
-        const returnRecipeId = localStorage.getItem('oil_return_recipe_id')
-        if (returnRecipeId) {
-          localStorage.removeItem('oil_return_recipe_id')
-          ui.showToast('二维码已上传，返回配方卡片 ✨')
-          await new Promise(r => setTimeout(r, 800))
-          router.push('/?openRecipe=' + encodeURIComponent(returnRecipeId))
-          return
-        }
-      }
+      else if (type === 'qr') brandQrImage.value = base64
       ui.showToast('上传成功')
     }
   } catch {