- Logger doesn't start with log level DEBUG by default, instead reads a environment variable
- Secret handler raises exceptions instead of using the module os to exit
- Added extensive debug logging
- Added detailed function descriptions
- Added exponential backoff when parsing the RSS feed
Robust ping/reconnect: get_db() now retries ping multiple times and safely recreates the pool once per request.
Healthcheck thread: background daemon periodically pings connections and recreates the pool if needed.
Logging improvements: early pool creation and healthcheck logs appear via proper logger setup.
