server/utils/AiProviders/azureOpenAi/index.js

It's a good practice to log the error messages for debugging purposes. In the catch block of the try-catch statement, you are currently just logging the error object. It would be more informative to log a custom error message along with the error stack trace. This will make it easier to identify and debug any issues that may arise.
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    .catch((error) => {
        console.error(`AzureOpenAI::getChatCompletions failed with: ${error.message}`, error.stack);
        throw new Error(`AzureOpenAI::getChatCompletions failed with: ${error.message}`);
      });

git fetch origin && git checkout -b ReviewBot/Impro-d2af7x9 origin/ReviewBot/Impro-d2af7x9

The error message "No OPEN_MODEL_PREF ENV defined. This must the name of a deployment on your Azure account for an LLM chat model like GPT-3.5." is repeated multiple times in the code. It would be better to define it as a constant at the top of the file and use the constant instead. This will make the code cleaner and easier to maintain.
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    const MODEL_ERROR_MESSAGE = "No OPEN_MODEL_PREF ENV defined. This must the name of a deployment on your Azure account for an LLM chat model like GPT-3.5.";

    // Then replace the repeated error messages with MODEL_ERROR_MESSAGE
    throw new Error(MODEL_ERROR_MESSAGE);

git fetch origin && git checkout -b ReviewBot/Impro-ow3h4tx origin/ReviewBot/Impro-ow3h4tx

server/utils/chats/stream.js

In the handleStreamResponses function, the line.split("\n") operation is performed for each line of data, which can be computationally expensive for large data sets. It would be more efficient to perform this operation once, store the result in a variable, and then use that variable in the for loop.
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    const splitLines = data?.toString()?.split("\n").filter((line) => line.trim() !== "");
    for (const line of splitLines) {
      // rest of the code...
    }

git fetch origin && git checkout -b ReviewBot/Impro-j2l5acl origin/ReviewBot/Impro-j2l5acl