feat: Add CI/CD pipeline and code quality improvements

- Add GitHub Actions workflow for automated CI/CD
- Configure Node.js 18.x and 20.x matrix testing
- Add TypeScript type checking step
- Add ESLint code quality checks with enhanced rules
- Add Prettier formatting verification
- Add production build validation
- Upload build artifacts for deployment
- Set up automated testing on push/PR
- Replace console.log with environment-aware logger
- Add pre-commit hooks for code quality
- Exclude archive folder from linting

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/hooks/toast/store.ts

@@ -1,8 +1,7 @@
-
-import { State } from './types'
+import { State } from "./types";
 
 // 전역 상태 및 리스너
-export const listeners: Array<(state: State) => void> = []
+export const listeners: Array<(state: State) => void> = [];
 
 // memoryState와 lastAction은 toastManager.ts에서 관리
-export { memoryState } from './toastManager';
+export { memoryState } from "./toastManager";