server/models/telemetry.js

Instead of using a ternary operator to determine the distinctId, you can use a more readable and performant approach by using the logical OR operator. This will return the first truthy value it encounters, or the last value if none are truthy.
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    const distinctId = subUserId || systemId;

server/endpoints/chat.js

Instead of logging the error and sending a generic error message to the client, it would be better to send the actual error message only if it does not expose any sensitive information. This would help in debugging issues faster and also provide the client with more context about what went wrong.
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    response.status(500).json({
      id: uuidv4(),
      type: "abort",
      textResponse: null,
      sources: [],
      close: true,
      error: process.env.NODE_ENV === 'production' ? 'An error occurred' : e.message,
    });

server/endpoints/workspaces.js

Similar to the previous suggestion, it would be better to send the actual error message only if it does not expose any sensitive information. This would help in debugging issues faster and also provide the client with more context about what went wrong.
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    response.status(500).json({
      error: process.env.NODE_ENV === 'production' ? 'An error occurred' : e.message,
    });

server/endpoints/system.js

Instead of requiring the 'bcrypt' module inside the '/request-token' endpoint, it would be more efficient to require it at the top of the file. This way, the module is loaded into memory once and can be reused across different parts of your application, improving performance.
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    const bcrypt = require("bcrypt");

Instead of requiring the 'child_process' module inside the '/migrate' endpoint, it would be more efficient to require it at the top of the file. This way, the module is loaded into memory once and can be reused across different parts of your application, improving performance.
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    const { execSync } = require("child_process");

It's a good practice to avoid logging sensitive information such as passwords. In the '/request-token' endpoint, if there's an error, the password is being logged. This could potentially expose sensitive user information in the logs. Consider removing the password from the logging statement.
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    console.log(e.message);

Consider using a middleware for error handling instead of repeating the same error handling code in each endpoint. This would make your code DRY (Don't Repeat Yourself) and easier to maintain.
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    app.use((err, req, res, next) => {
      console.error(err.message);
      res.status(500).end();
    });