- Remove initialization window semantics for readonly properties
- Restrict readonly property writes to direct assignment only
- Add explicit error messages for unsupported readonly operations
- Update tests to reflect new readonly property behavior
- Remove constructor and clone method invocation restrictions
- Add support for closure rebinding rejection at compile time
- Modify property write target preparation with readonly checks
- Update documentation to remove outdated readonly initialization rules
- Add new test cases for readonly property direct assignment enforcement
