Added complete code documentation

src/models/ai.ts

@@ -1,6 +1,10 @@
 import { ChatCompletionRequestMessage, ChatCompletionResponseMessage } from 'openai';
 
 export interface AI {
+  /**
+   * Get the chat completion from the OpenAI API
+   * @param chatHistory
+   */
   chatCompletion(chatHistory: ChatCompletionRequestMessage[]):
     Promise<ChatCompletionResponseMessage>;
 }

src/models/runnable.ts

@@ -1,3 +1,6 @@
 export interface Runnable {
+  /**
+   * Run the service instance
+   */
   run(): void;
 }