fix(knowledge_base): Unchecked metadata name length (#21454)

Signed-off-by: -LAN- <laipz8200@outlook.com>

web/app/components/datasets/metadata/hooks/use-check-metadata-name.ts

@@ -18,6 +18,12 @@ const useCheckMetadataName = () => {
         }
       }
 
+      if (name.length > 255) {
+        return {
+          errorMsg: t(`${i18nPrefix}.tooLong`, { max: 255 }),
+        }
+      }
+
       return {
         errorMsg: '',
       }

web/i18n/en-US/dataset.ts

@@ -183,6 +183,7 @@ const translation = {
     checkName: {
       empty: 'Metadata name cannot be empty',
       invalid: 'Metadata name can only contain lowercase letters, numbers, and underscores and must start with a lowercase letter',
+      tooLong: 'Metadata name cannot exceed {{max}} characters',
     },
     batchEditMetadata: {
       editMetadata: 'Edit Metadata',