WIP: fork patch/collider/codec stubs, 464->135 compile errors

Phase 0 compile progress (70% reduction). Core data model compile :

Refs yesman.epicfight strippées (hors 4 javadocs) :
- AnimationProperty : combat properties EXTRA_DAMAGE, STUN_TYPE, PARTICLE
- ClientAnimator : playAnimationAt(..., AnimatorControlPacket.Layer, Priority)
- ClothSimulator : OBBCollider -> fork geometry-only dans rig/collider/
- InstantiateInvoker : Collider, ColliderPreset, Armatures, DatapackEditScreen
- MoveCoordFunctions : GrapplingAttackAnimation
- SimulationTypes : InverseKinematicsSimulator (path rewrite)

Stubs patch/ :
- EntityPatch<T> abstract — getOriginal, isLogicalClient, getMatrix, getAngleTo
- LivingEntityPatch<T> abstract — getAnimator, getArmature, getTarget, getYRot*
- MobPatch<T extends Mob> — instanceof check only
- item/CapabilityItem — type marker

Forks utilitaires :
- rig/collider/OBBCollider — geometry only (strip Entity collision, drawInternal)
- anim/types/StateSpectrum — identique EF, imports rewrités
- util/PacketBufferCodec — StreamCodec backport
- util/TimePairList — identique EF
- util/HitEntityList — shell pour Priority enum uniquement
- util/ExtendableEnum + ExtendableEnumManager — register/assign enum

Fix package declarations :
- armature/Joint.java + JointTransform.java : package rig.anim -> rig.armature
- Imports JointTransform ajoutés dans anim/{Pose,Keyframe,TransformSheet}

Residu 135 errors = cluster rendering (Phase 2) :
- render/TiedUpRenderTypes (17) : CompositeState package-private MC
- event/PatchedRenderersEvent (11) : missing PatchedEntityRenderer
- mesh/SkinnedMesh (13) : VanillaMeshPartDefinition, compute shader fields
- asset/JsonAssetLoader (6), anim/LivingMotion (5)

src/main/java/com/tiedup/remake/rig/armature/Joint.java

@@ -4,7 +4,7 @@
  * Modifications © 2026 TiedUp! Remake Contributors, distributed under GPLv3.
  */
 
-package com.tiedup.remake.rig.anim;
+package com.tiedup.remake.rig.armature;
 
 import java.util.Iterator;
 import java.util.LinkedList;