refactor: enhance error handling and normalization across AI engines

This update introduces a centralized error handling mechanism for various AI engines, improving the consistency and clarity of error messages. The new `normalizeEngineError` function standardizes error responses, allowing for better user feedback and recovery suggestions. Additionally, specific error classes for insufficient credits, rate limits, and service availability have been implemented, along with user-friendly formatting for error messages. This refactor aims to enhance the overall user experience when interacting with the AI services.

src/commands/commit.ts

@@ -11,6 +11,10 @@ import {
 import chalk from 'chalk';
 import { execa } from 'execa';
 import { generateCommitMessageByDiff } from '../generateCommitMessageFromGitDiff';
+import {
+  formatUserFriendlyError,
+  printFormattedError
+} from '../utils/errors';
 import {
   assertGitRepo,
   getChangedFiles,
@@ -211,10 +215,11 @@ ${chalk.grey('——————————————————')}`
       `${chalk.red('✖')} Failed to generate the commit message`
     );
 
-    console.log(error);
+    const errorConfig = getConfig();
+    const provider = errorConfig.OCO_AI_PROVIDER || 'openai';
+    const formatted = formatUserFriendlyError(error, provider);
+    outro(printFormattedError(formatted));
 
-    const err = error as Error;
-    outro(`${chalk.red('✖')} ${err?.message || err}`);
     process.exit(1);
   }
 };