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

build.gradle

@@ -42,7 +42,7 @@ dependencies {
 	implementation "carpet:fabric-carpet:${project.carpet_core_version}"
 
 	// Fabric Permission API
-	include(implementation('me.lucko:fabric-permissions-api:0.3.1'))
+	include(implementation('me.lucko:fabric-permissions-api:0.7.0'))
 
 	// Fabric API. This is technically optional, but you probably want it anyway.
 	implementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"