feat: 完整迁移到 Minecraft 26.1.2 / Java 25

- 构建：Loom 1.18-SNAPSHOT、Gradle 9.7.1、official 映射 & - 依赖：carpet 26.1+v260401、fabric-api 0.155.3+26.1.2、fabric-permissions-api 0.7.0 & - 源码：~30 文件 + 28 mixin 从 Yarn 迁移到 Mojang official 映射 & - accessWidener 改为 official 命名空间 & - 适配新 API：Component/ChatFormatting/CommandSourceStack/Commands/ResourceKey/ & ServerLevel/ServerPlayer/Abilities/CraftingRemainingItem/PermissionSet/ValueInput-Output 等 & - 部分功能（elytraCraftable/datapack 注入/offlineFakePlayers）按新 API 近似重写，待实机验证

gradle.properties

@@ -14,4 +14,6 @@ maven_group = com.github.zly2006
 archives_base_name = carpet-sls-addition
 # Dependencies
 fabric_version=0.155.3+26.1.2
-carpet_core_version=26.1+v260401
+carpet_core_version=26.1+v260401
+# 指定构建用 JDK 25（本机 Minecraft 运行时自带）
+org.gradle.java.home=C\:\\Users\\28579\\AppData\\Roaming\\.minecraft\\runtime\\java-runtime-epsilon