fix: remove release_max_level_error tracing feature from hyperlight-js-runtime

[jprendes]

Summary

Removes the release_max_level_error feature from the tracing crate in hyperlight-js-runtime, which was suppressing all log levels above error in release builds.

Fixes #126

Changes

• Removed release_max_level_error from the tracing crate features in hyperlight-js-runtime/Cargo.toml
• Added a regression test to ensure this feature does not get re-enabled

Problem

The release_max_level_error feature causes the tracing crate to compile out all trace/debug/info/warn log levels in release builds. This breaks tracing functionality and prevents users from seeing log output at levels other than error.

Testing

• Added tests/tracing_features.rs which uses cargo tree to verify the tracing crate's enabled features
• The test asserts that release_max_level_error is NOT present and max_level_trace IS present