🟢 12. Missing Documentation

### 
New functions lack JSDoc comments. Suggested format:

```js
/**
 * Fetches issue data from Gitea API
 * @param {number} issueId - The Gitea issue ID
 * @returns {Promise<Object>} The issue data object
 * @throws {Error} If the fetch fails or issue doesn't exist
 */
async function fetchIssueData(issueId) {
    // ...
}
```
