feat(client): 客户端网络层、zh_cn 中文语言文件、NSIS 中文安装脚本、UI 渲染器与 HUD（gl 标签）

scripts/installer.nsi

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+; 年糕历险记 —— Windows 安装脚本（NSIS 3，简体中文）
+; 用法：makensis /DVERSION=1.0.0 scripts/installer.nsi
+; 产物：年糕历险记-Setup-v1.0.0.exe（构建与发布.md §8）
+
+Unicode true
+!include "MUI2.nsh"
+
+; ---- 产品信息（构建与发布.md §8：名称统一为 年糕历险记）----
+!ifndef VERSION
+  !define VERSION "0.1.0"
+!endif
+!define PRODUCT_NAME "年糕历险记"
+!define PRODUCT_NAME_EN "NianGao Adventure"
+!define PRODUCT_PUBLISHER "NianGao Studio"
+!define PRODUCT_EXE "mc-client.exe"
+!define INSTALLER_NAME "${PRODUCT_NAME}-Setup-v${VERSION}.exe"
+!define UNINSTALL_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME_EN}"
+
+Name "${PRODUCT_NAME}"
+OutFile "dist\${INSTALLER_NAME}"
+InstallDir "$PROGRAMFILES64\${PRODUCT_NAME_EN}"
+InstallDirRegKey HKLM "${UNINSTALL_KEY}" "InstallLocation"
+RequestExecutionLevel admin
+SetCompressor /SOLID lzma
+
+!define MUI_ABORTWARNING
+!define MUI_ICON "..\resourcepacks\texture-pack-default1.20.5-26.2\pack.png"
+!define MUI_UNICON "..\resourcepacks\texture-pack-default1.20.5-26.2\pack.png"
+
+; ---- 页面（全中文）----
+!insertmacro MUI_PAGE_WELCOME
+!insertmacro MUI_PAGE_DIRECTORY
+!insertmacro MUI_PAGE_INSTFILES
+!insertmacro MUI_PAGE_FINISH
+
+!insertmacro MUI_UNPAGE_CONFIRM
+!insertmacro MUI_UNPAGE_INSTFILES
+
+!insertmacro MUI_LANGUAGE "SimpChinese"
+
+; ---- 安装内容（构建与发布.md §8）----
+Section "主程序" SEC01
+  SetOutPath "$INSTDIR"
+  File "..\bin\mc-client.exe"
+  File "..\bin\mc-server.exe"
+
+  ; 配置与语言
+  SetOutPath "$INSTDIR\config"
+  File "..\config\client.yaml"
+  File "..\config\server.yaml"
+
+  ; 默认素材包
+  SetOutPath "$INSTDIR\resourcepacks\texture-pack-default1.20.5-26.2"
+  File /r "..\resourcepacks\texture-pack-default1.20.5-26.2\*.*"
+
+  ; 内容包投放目录与说明
+  SetOutPath "$INSTDIR\mods"
+  File "..\mods\README.md"
+
+  ; 世界存档目录
+  CreateDirectory "$INSTDIR\worlds"
+  CreateDirectory "$INSTDIR\logs"
+
+  ; 注册卸载信息
+  WriteRegStr HKLM "${UNINSTALL_KEY}" "DisplayName" "${PRODUCT_NAME}"
+  WriteRegStr HKLM "${UNINSTALL_KEY}" "DisplayVersion" "${VERSION}"
+  WriteRegStr HKLM "${UNINSTALL_KEY}" "Publisher" "${PRODUCT_PUBLISHER}"
+  WriteRegStr HKLM "${UNINSTALL_KEY}" "DisplayIcon" "$INSTDIR\${PRODUCT_EXE}"
+  WriteRegStr HKLM "${UNINSTALL_KEY}" "InstallLocation" "$INSTDIR"
+  WriteRegStr HKLM "${UNINSTALL_KEY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "${UNINSTALL_KEY}" "NoModify" 1
+  WriteRegDWORD HKLM "${UNINSTALL_KEY}" "NoRepair" 1
+
+  WriteUninstaller "$INSTDIR\uninstall.exe"
+
+  ; 快捷方式（桌面 + 开始菜单，中文名）
+  CreateShortCut "$DESKTOP\${PRODUCT_NAME}.lnk" "$INSTDIR\${PRODUCT_EXE}"
+  CreateDirectory "$SMPROGRAMS\${PRODUCT_NAME}"
+  CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}\${PRODUCT_NAME}.lnk" "$INSTDIR\${PRODUCT_EXE}"
+  CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}\卸载${PRODUCT_NAME}.lnk" "$INSTDIR\uninstall.exe"
+SectionEnd
+
+; ---- 卸载 ----
+Section "Uninstall"
+  Delete "$DESKTOP\${PRODUCT_NAME}.lnk"
+  RMDir /r "$SMPROGRAMS\${PRODUCT_NAME}"
+  Delete "$INSTDIR\${PRODUCT_EXE}"
+  Delete "$INSTDIR\mc-server.exe"
+  Delete "$INSTDIR\uninstall.exe"
+  RMDir /r "$INSTDIR\config"
+  RMDir /r "$INSTDIR\resourcepacks"
+  RMDir /r "$INSTDIR\mods"
+  ; 保留用户存档（worlds/）与日志，不删除
+  DeleteRegKey HKLM "${UNINSTALL_KEY}"
+SectionEnd