LMStudio 0 value embeddings patch (#4084)

patch lmstudio encoding_format to fix all embeddings as 0 value

server/utils/EmbeddingEngines/lmstudio/index.js

@@ -63,6 +63,7 @@ class LMStudioEmbedder {
           .create({
             model: this.model,
             input: chunk,
+            encoding_format: "base64",
           })
           .then((result) => {
             const embedding = result.data?.[0]?.embedding;