🔍 refactor: OCR Fully Optional with Defaults for "Upload as Text" (#9856)

* refactor: move `loadOCRConfig` from `packages/data-provider` to `packages/api` and return `undefined` if not explicitly configured

* fix: loadOCRConfig import from @librechat/api

* refactor: update defaultTextMimeTypes to support virtually all file types for text parsing

* fix: improve OCR capability check and error message for unsupported file types

* ci: remove unnecessary ocr expectation from AppService test

packages/api/src/files/index.ts

@@ -1,4 +1,5 @@
-export * from './mistral/crud';
 export * from './audio';
-export * from './text';
+export * from './mistral/crud';
+export * from './ocr';
 export * from './parse';
+export * from './text';

packages/api/src/files/mistral/crud.ts

@@ -303,7 +303,7 @@ async function loadAuthConfig(context: OCRContext): Promise<AuthConfig> {
 /**
  * Gets the model configuration
  */
-function getModelConfig(ocrConfig: TCustomConfig['ocr']): string {
+function getModelConfig(ocrConfig?: TCustomConfig['ocr']): string {
   const modelConfig = ocrConfig?.mistralModel || '';
 
   if (!modelConfig.trim()) {

packages/api/src/files/ocr.ts

@@ -1,7 +1,8 @@
-import type { TCustomConfig } from '../src/config';
-import { OCRStrategy } from '../src/config';
+import { OCRStrategy } from 'librechat-data-provider';
+import type { TCustomConfig } from 'librechat-data-provider';
 
-export function loadOCRConfig(config: TCustomConfig['ocr']): TCustomConfig['ocr'] {
+export function loadOCRConfig(config?: TCustomConfig['ocr']): TCustomConfig['ocr'] | undefined {
+  if (!config) return;
   const baseURL = config?.baseURL ?? '';
   const apiKey = config?.apiKey ?? '';
   const mistralModel = config?.mistralModel ?? '';

packages/data-provider/src/file-config.ts

@@ -133,7 +133,7 @@ export const defaultOCRMimeTypes = [
   /^application\/epub\+zip$/,
 ];
 
-export const defaultTextMimeTypes = [textMimeTypes];
+export const defaultTextMimeTypes = [/^[\w.-]+\/[\w.-]+$/];
 
 export const defaultSTTMimeTypes = [audioMimeTypes];
 

packages/data-provider/src/index.ts

@@ -9,7 +9,6 @@ export * from './messages';
 export * from './artifacts';
 /* schema helpers  */
 export * from './parsers';
-export * from './ocr';
 /* custom/dynamic configurations  */
 export * from './generate';
 export * from './models';