- Enhanced module-level documentation in mod.rs - Added comprehensive documentation to debug.rs - Fixed unused imports in try_catch.rs - Documented modularization history and architecture - All visibility modifiers verified as correct - Smoke tests pass (26/27, 1 unrelated timeout)
- Created exception/ directory with try_catch.rs, throw.rs, mod.rs - Extracted ~180 lines of exception handling logic - control_flow/mod.rs now delegates to exception module - All builds pass, no behavior changes
