Pre-MCP UI and architecture cleanup (#19689)

tools/server/webui/src/lib/utils/convert-files-to-extra.ts

@@ -7,6 +7,7 @@ import { modelsStore } from '$lib/stores/models.svelte';
 import { getFileTypeCategory } from '$lib/utils';
 import { readFileAsText, isLikelyTextFile } from './text-files';
 import { toast } from 'svelte-sonner';
+import type { FileProcessingResult, ChatUploadedFile, DatabaseMessageExtra } from '$lib/types';
 
 function readFileAsBase64(file: File): Promise<string> {
 	return new Promise((resolve, reject) => {
@@ -25,11 +26,6 @@ function readFileAsBase64(file: File): Promise<string> {
 	});
 }
 
-export interface FileProcessingResult {
-	extras: DatabaseMessageExtra[];
-	emptyFiles: string[];
-}
-
 export async function parseFilesToMessageExtras(
 	files: ChatUploadedFile[],
 	activeModelId?: string