feat: add configuration files and scripts for project setup ✨

🚀 Breaking Changes:
- Introduced new environment variables for GitLab API integration
- Added validation script for PR checks
- Updated package.json with new scripts for testing and formatting

📝 Details:
- Added .prettierrc and .eslintrc.json for code formatting and linting
- Created .env.example for environment variable setup
- Updated CHANGELOG.md with recent changes
- Added documentation for GitHub secrets setup

test-note.ts

@@ -33,9 +33,7 @@ async function testCreateIssueNote() {
 
     if (!response.ok) {
       const errorBody = await response.text();
-      throw new Error(
-        `GitLab API error: ${response.status} ${response.statusText}\n${errorBody}`
-      );
+      throw new Error(`GitLab API error: ${response.status} ${response.statusText}\n${errorBody}`);
     }
 
     const data = await response.json();