This PR refactors the configuration parser, replacing the old parser implementation with a new, more structured approach that includes validation and improved organization.
Key changes:
- Complete rewrite of the configuration parser using a map-based structure with built-in validation
- Addition of comprehensive validator functions for configuration values
- Renamed numerous configuration getter methods for better consistency
This has close to no impact for now, as our slog.Debug/Info/... are leaking
their parameters to the heap, but using proper typing instead of Any allows
to skip some reflection-based computation, making things marginally faster,
and removing the corresponding heap leak.
