ryan aeb7118b30 Refactor logging to use slog package across the application ...

- Replaced standard log package with log/slog in httpclient, nginx manager, sync service, updater, and other components for structured logging.
- Introduced environment variable `LOG_LEVEL` to control logging levels (debug, info, warn, error).
- Updated documentation to reflect changes in logging configuration and requirements.
- Added a new logging setup function in the ats_agent internal package to initialize the slog logger.

2026-03-13 14:53:51 +08:00

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main.go

Refactor logging to use slog package across the application

2026-03-13 14:53:51 +08:00