scene 0.3.0

• Standardized model-space front-face winding to Counter-Clockwise (CCW) in .fscene format version 5; version 4 documents migrate by swapping index pairs during realization.
• .fsceneb format version 2 compresses payload chunks with gzip; older readers reject version 2.
• MorphTargetsSpec and GeometryResource.morphTargets carry baked morph target deltas, names, and default weights.
• AnimationProperty.weights animates morph weights.
• .fscene version 4; a version-3 reader refuses a morph-bearing document instead of silently dropping the deltas. Version 3 documents read as-is.
• EnvironmentEffectsSpec carries global illumination and temporal anti-aliasing settings, delta-serialized through .fscene and .fsceneb.