Today's Update Highlights

Fixes

• Limb regrow animation not playing when wearing GeoLib armor: Root cause was GeckoLib overwriting the player's render state with only the helmet's animation data. Fixed by writing limb data back via GeoArmorRendererCaptureMixin.
• Model offset silently failing: cam.initialized check was unreliable and the offset was hardcoded. Now uses model-pixel-based adaptive offset.
• Broken drop chain: Added drop tables for zbr_flesh block + 3 entities.
• Survival unplayable: Previously had 0 recipes and 0 natural spawning. Now fully implemented.

Additions

• Character selection book GUI: Single unified book, consumed on selection, server-side validated, auto-granted once on survival start.
• Ultraman Corpse Brother: New entity reusing low-tier model, skips zombie skeleton bones, non-aggressive.
• Survival content: 12 recipes + 12 unlock advancements, 7 naturally spawning mobs, corpse water spring worldgen.
• Corpse Brother appearance system: Random player IDs + api.mojang.com skin resolution + local tint variants.
• Config file config/corpseorigin.json.

Adjustments

• Lowered Corpse Brother spawn weights, concentrated spawning near corpse water springs.
• Removed all temporary [LIMB-DBG] debug logging.

TODO

• Skin resolution may fail in China; needs CustomSkinLoader fallback.