Merge branch 'animals' into main: animal/zoology system (A1-A8 + serialization)

Brings the full animal foundation onto main and folds its new defs into the
Defs/ subfolder layout introduced on main:
- animal genes -> Defs/Genes/Animal.json (split out of genes.json)
- animals/bodies/hediffs/needs/thoughts -> own Defs/<Type>/ subfolders
- ProductMeat/Bone/Leather + bigger world presets auto-merged via rename detection
- PawnDef un-sealed (AnimalDef : PawnDef); def-location doc comments updated to subfolders
- engine pointer kept at main's newer 96e19c7 (only adds directional sun shadows)

Build + --check-content clean: 11 def types, 33 genes, 35 plants, 32 traits.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Mods/Core/Defs/Bodies/Bodies.json

@@ -0,0 +1,34 @@
+{
+  "type": "Body",
+  // Анатомия видов (фаза A5): дерево частей/органов. Вклады в способности (capacities) по телу
+  // суммируются ≈1 у здоровой особи. maxHp умножается на размер тела особи при создании.
+  // Источников урона пока нет — части на полном HP, способности = 1; каркас под болезни/хищников.
+  "defs": [
+    {
+      "defName": "Quadruped",
+      "parts": [
+        { "name": "torso", "coverage": 0.32, "maxHp": 40, "vital": true },
+        { "name": "heart", "parent": "torso", "coverage": 0.02, "maxHp": 12, "vital": true,
+          "capacities": { "BloodPumping": 1.0 } },
+        { "name": "lungLeft", "parent": "torso", "coverage": 0.03, "maxHp": 12,
+          "capacities": { "Breathing": 0.5 } },
+        { "name": "lungRight", "parent": "torso", "coverage": 0.03, "maxHp": 12,
+          "capacities": { "Breathing": 0.5 } },
+        { "name": "liver", "parent": "torso", "coverage": 0.03, "maxHp": 14, "vital": true },
+        { "name": "stomach", "parent": "torso", "coverage": 0.03, "maxHp": 12,
+          "capacities": { "Digestion": 1.0 } },
+        { "name": "head", "coverage": 0.1, "maxHp": 25 },
+        { "name": "brain", "parent": "head", "coverage": 0.02, "maxHp": 12, "vital": true,
+          "capacities": { "Consciousness": 1.0 } },
+        { "name": "eyeLeft", "parent": "head", "coverage": 0.015, "maxHp": 8,
+          "capacities": { "Sight": 0.5 } },
+        { "name": "eyeRight", "parent": "head", "coverage": 0.015, "maxHp": 8,
+          "capacities": { "Sight": 0.5 } },
+        { "name": "legFrontLeft", "coverage": 0.08, "maxHp": 15, "capacities": { "Moving": 0.25 } },
+        { "name": "legFrontRight", "coverage": 0.08, "maxHp": 15, "capacities": { "Moving": 0.25 } },
+        { "name": "legBackLeft", "coverage": 0.08, "maxHp": 15, "capacities": { "Moving": 0.25 } },
+        { "name": "legBackRight", "coverage": 0.08, "maxHp": 15, "capacities": { "Moving": 0.25 } }
+      ]
+    }
+  ]
+}