refactor(knowledge): remove duplicate extension list from parser-extension

Use SUPPORTED_DOCUMENT_EXTENSIONS and isSupportedExtension from
validation.ts instead of maintaining a separate identical list.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: waleedlatif1

apps/sim/lib/knowledge/documents/parser-extension.ts

@@ -1,29 +1,11 @@
 import { getExtensionFromMimeType } from '@/lib/uploads/utils/file-utils'
-import { isAlphanumericExtension } from '@/lib/uploads/utils/validation'
+import {
+  isAlphanumericExtension,
+  isSupportedExtension,
+  SUPPORTED_DOCUMENT_EXTENSIONS,
+} from '@/lib/uploads/utils/validation'
 
-const SUPPORTED_FILE_TYPES = [
-  'pdf',
-  'csv',
-  'docx',
-  'doc',
-  'txt',
-  'md',
-  'xlsx',
-  'xls',
-  'pptx',
-  'ppt',
-  'html',
-  'htm',
-  'json',
-  'yaml',
-  'yml',
-] as const
-
-const SUPPORTED_FILE_TYPES_TEXT = SUPPORTED_FILE_TYPES.join(', ')
-
-function isSupportedParserExtension(extension: string): boolean {
-  return SUPPORTED_FILE_TYPES.includes(extension as (typeof SUPPORTED_FILE_TYPES)[number])
-}
+const SUPPORTED_EXTENSIONS_TEXT = SUPPORTED_DOCUMENT_EXTENSIONS.join(', ')
 
 export function resolveParserExtension(
   filename: string,
@@ -33,12 +15,12 @@ export function resolveParserExtension(
   const raw = filename.includes('.') ? filename.split('.').pop()?.toLowerCase() : undefined
   const filenameExtension = raw && isAlphanumericExtension(raw) ? raw : undefined
 
-  if (filenameExtension && isSupportedParserExtension(filenameExtension)) {
+  if (filenameExtension && isSupportedExtension(filenameExtension)) {
     return filenameExtension
   }
 
   const mimeExtension = mimeType ? getExtensionFromMimeType(mimeType) : undefined
-  if (mimeExtension && isSupportedParserExtension(mimeExtension)) {
+  if (mimeExtension && isSupportedExtension(mimeExtension)) {
     return mimeExtension
   }
 
@@ -48,7 +30,7 @@ export function resolveParserExtension(
 
   if (filenameExtension) {
     throw new Error(
-      `Unsupported file type: ${filenameExtension}. Supported types are: ${SUPPORTED_FILE_TYPES_TEXT}`
+      `Unsupported file type: ${filenameExtension}. Supported types are: ${SUPPORTED_EXTENSIONS_TEXT}`
     )
   }