fix: make ai fields to be optional (#164)

Author: recallwei

packages/cz-git/src/generator/questionAI.ts

@@ -16,7 +16,7 @@ import { generateAISubjects } from './message'
 
 export async function generateAIPrompt(options: CommitizenGitOptions, cz: CommitizenType) {
   const answers = await cz.prompt(generateAITypesQuestions(options))
-  console.log(style.green('ℹ'), style.bold(options.messages!.generatingByAI))
+  console.log(style.green('ℹ'), style.bold(options.messages!.generatingByAI!))
   const subjects = await generateAISubjects(answers, options)
   if (!Array.isArray(subjects))
     throw new Error('subjects fetch value failed')

packages/cz-git/src/shared/types/options.ts

@@ -82,11 +82,11 @@ export interface Answers {
   /**
    * @default 'Generating your AI commit subject...'
    */
-  generatingByAI: string
+  generatingByAI?: string
   /**
    * @default 'Select suitable subject by AI generated:'
    */
-  generatedSelectByAI: string
+  generatedSelectByAI?: string
   footerPrefix?: string
 }