Added model and role translation. Rewrite of code's comments.

src/config.ts

@@ -1,9 +1,26 @@
+/**
+ * @fileoverview This file manages the application's configuration,
+ * loading environment variables and providing them in a structured object.
+ */
 /* eslint-disable n/no-process-env */
 import dotenv from 'dotenv';
 
 dotenv.config();
 
+/**
+ * Application configuration object.
+ */
 export const config = {
+  /**
+   * The port number for the server to listen on.
+   * Defaults to 11434 if not specified in the environment.
+   * @type {number}
+   */
   PORT: Number(process.env.PORT ?? 11434),
+  /**
+   * A flag to enable or disable verbose logging.
+   * Defaults to true if not specified in the environment.
+   * @type {boolean}
+   */
   VERBOSE: Boolean(process.env.VERBOSE ?? true),
 };