wip: 迁移到 26.1.2（第一批：构建配置+简单命令类）

已改：accessWidener/ fabric.mod.json/ HatCommand/ SitCommand/ util 接口/ 映射表文档。剩余源码待迁移。

src/main/resources/slsa.accesswidener

@@ -1,6 +1,5 @@
-accessWidener v1 named
-accessible class net/minecraft/world/block/ChainRestrictedNeighborUpdater$Entry
-accessible class net/minecraft/entity/mob/EndermanEntity$PickUpBlockGoal
-accessible method net/minecraft/entity/Entity unsetRemoved ()V
-accessible field net/minecraft/entity/player/PlayerEntity PLAYER_MODEL_PARTS Lnet/minecraft/entity/data/TrackedData;
-accessible field net/minecraft/block/spawner/TrialSpawnerData spawnedMobsAlive Ljava/util/Set;
+accessWidener v1 official
+
+accessible class net/minecraft/world/entity/monster/EnderMan$EndermanTakeBlockGoal
+accessible field net/minecraft/world/entity/Entity entityData Lnet/minecraft/network/syncher/SynchedEntityData;
+accessible field net/minecraft/server/level/ServerPlayer DATA_PLAYER_MODE_CUSTOMISATION Lnet/minecraft/network/syncher/EntityDataAccessor;