* feat: add CLI support for output file and Git reference
* feat: implement atomic file writes for saving JSON
* feat: add dry-run mode to simulate fetching without saving
* feat: increase connection pool size to avoid "Connection pool is full" warnings
* feat: add progress bar for fetching and processing rule files
* feat: add retries for SHA verification in case of transient errors
* refactor: improve error handling for connection pool-related errors
* refactor: use ThreadPoolExecutor for parallel fetching of rule files
* refactor: improve logging with structured messages
* fix: handle edge cases in tag fetching logic
* fix: handle empty blob content gracefully
* fix: improve SHA verification logging
* docs: add comments and docstrings for better code readability
* chore: update requirements.txt to include tqdm
* test: add unit tests for critical functions
- Added exponential backoff and retry logic for GitHub API requests to handle rate limits and transient errors.
- Introduced SHA verification for fetched blobs to ensure data integrity.
- Implemented optional GitHub token support for authenticated requests.
- Improved handling of the latest matching tag by dynamically sorting and selecting the newest available version.
- Reorganized functions for better modularity and readability.
- Added error handling for blob fetching and decoding with base64 processing.
- Directory creation for output files now ensured, improving save reliability.
