Improve auto accessor decorator implementation
- Fixed auto accessor descriptor generation to include getter/setter functions
- Added proper get/set variables to init_vars for destructuring
- Simplified getter/setter function generation for public accessors
- Descriptor now matches Babel format: [decorator, kind, name, getter, setter]
- Reduced test failures from 415 to 79 by fixing multiple decorator issues
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Co-Authored-By: Claude <noreply@anthropic.com>