🚀 Feat: Streamline File Strategies & GPT-4-Vision Settings (#1535)

* chore: fix `endpoint` typescript issues and typo in console info message

* feat(api): files GET endpoint and save only file_id references to messages

* refactor(client): `useGetFiles` query hook, update file types, optimistic update of filesQuery on file upload

* refactor(buildTree): update to use params object and accept fileMap

* feat: map files to messages; refactor(ChatView): messages only available after files are fetched

* fix: fetch files only when authenticated

* feat(api): AppService
- rename app.locals.configs to app.locals.paths
- load custom config use fileStrategy from yaml config in app.locals

* refactor: separate Firebase and Local strategies, call based on config

* refactor: modularize file strategies and employ with use of DALL-E

* refactor(librechat.yaml): add fileStrategy field

* feat: add source to MongoFile schema, as well as BatchFile, and ExtendedFile types

* feat: employ file strategies for upload/delete files

* refactor(deleteFirebaseFile): add user id validation for firebase file deletion

* chore(deleteFirebaseFile): update jsdocs

* feat: employ strategies for vision requests

* fix(client): handle messages with deleted files

* fix(client): ensure `filesToDelete` always saves/sends `file.source`

* feat(openAI): configurable `resendImages` and `imageDetail`

* refactor(getTokenCountForMessage): recursive process only when array of Objects and only their values (not keys) aside from `image_url` types

* feat(OpenAIClient): calculateImageTokenCost

* chore: remove comment

* refactor(uploadAvatar): employ fileStrategy for avatars, from social logins or user upload

* docs: update docs on how to configure fileStrategy

* fix(ci): mock winston and winston related modules, update DALLE3.spec.js with changes made

* refactor(redis): change terminal message to reflect current development state

* fix(DALL-E-2): pass fileStrategy to dall-e

api/server/services/Files/strategies.js

@@ -0,0 +1,54 @@
+const { FileSources } = require('librechat-data-provider');
+const {
+  getFirebaseURL,
+  prepareImageURL,
+  saveURLToFirebase,
+  deleteFirebaseFile,
+  uploadImageToFirebase,
+  processFirebaseAvatar,
+} = require('./Firebase');
+const {
+  getLocalFileURL,
+  saveFileFromURL,
+  deleteLocalFile,
+  uploadLocalImage,
+  prepareImagesLocal,
+  processLocalAvatar,
+} = require('./Local');
+
+// Firebase Strategy Functions
+const firebaseStrategy = () => ({
+  // saveFile:
+  saveURL: saveURLToFirebase,
+  getFileURL: getFirebaseURL,
+  deleteFile: deleteFirebaseFile,
+  prepareImagePayload: prepareImageURL,
+  processAvatar: processFirebaseAvatar,
+  handleImageUpload: uploadImageToFirebase,
+});
+
+// Local Strategy Functions
+const localStrategy = () => ({
+  // saveFile: ,
+  saveURL: saveFileFromURL,
+  getFileURL: getLocalFileURL,
+  deleteFile: deleteLocalFile,
+  processAvatar: processLocalAvatar,
+  handleImageUpload: uploadLocalImage,
+  prepareImagePayload: prepareImagesLocal,
+});
+
+// Strategy Selector
+const getStrategyFunctions = (fileSource) => {
+  if (fileSource === FileSources.firebase) {
+    return firebaseStrategy();
+  } else if (fileSource === FileSources.local) {
+    return localStrategy();
+  } else {
+    throw new Error('Invalid file source');
+  }
+};
+
+module.exports = {
+  getStrategyFunctions,
+};