Nyfs Spiders Au Naturel Edit

Automatically generated summary changelog:

• Walking side update throttling - Reduced update frequency from every tick to every 3 ticks when stationary, with smarter position-change detection (threshold increased from 0.01 to 1.0 blocks)
• Fast-path for stationary spiders - Skips expensive orientation recalculations when spider is grounded with negligible velocity
• Temporal caching for movement probes - Caches collision probe results and reuses them when spider position/movement hasn't changed significantly, reducing redundant Entity.move() calls
• Early-out for flat ground walking - Skips collision probing entirely when spider is walking on flat horizontal surfaces with no surface transitions, as actual collision detection still occurs during movement
• Reduced pathing targets - Decreased network sync overhead by reducing tracked pathing targets from 8 to 4
• Chunk collision caching - Reuses BlockGetter arrays when chunk boundaries haven't changed
• SDF iteration reduction - Reduced surface smoothing iterations from 20 to 10 (50% reduction)