- **Key Minification**: Refactored serialization to use short keys
(e.g., `p`, `c`, `w`) instead of verbose property names, reducing URL
size by ~50%.
- **State Optimization**: Removed redundant `sunDirection` from
serialized state.
- **Cleanup**: Removed backward compatibility for verbose keys
- **Bug Fix**: Fixed a regression where UI sliders failed to update on
load by ensuring array properties (e.g., `sunHalo`) are mutated
in-place rather than replaced.
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