Super Metroid v0.3.18 - precompiled runtime

This release fixes the widescreen artifacts confirmed during the October replay review.

• Plasma Spark no longer shows white cross tiles in unused room padding or a black cutout above the upper shaft wall.
• The Morph Ball Eye beam keeps its cone shape when it extends far beyond the original view. The thin yellow stripe at the old 4:3 edge is removed too.
• Cathedral's lava-surface bubbles now extend with the lava.
• Windows x64 includes the qualified native raster/runtime path already integrated on main. Other supported platforms retain their portable paths.

The owner accepted the corrected wall, cone and lava behavior and explicitly confirmed the final light fix. Renderer tests, immutable capture comparisons and current-build save/load checks pass. Three supplied clips remain unconfirmed/not reproduced after review; they are retained as deferred reports rather than claimed fixes. The previously reported Steam Deck gameplay audio crackle remains unverified on that device.

Keep your native SRAM saves and settings when updating. Save states belong to their exact build. Supply your own supported ROM; downloads contain only the precompiled runtime and assets.