Chinese main menu: font atlas + GB2312 tables + Strings translation

- build_cjk.py: 2048x1024 UI atlas (original ASCII at 0,0 + full GB2312 at 12px) and
  cjk_glyph/cjk_metric tables.
- cn_strings.py + make_cn_strings.py: escape-aware GB2312 rewrite of Strings.dat (46 entries).
- install_cjk.py: one-shot deploy/restore (exe patch, atlas loose+res, strings).
- apply_cjk.py: fix metrics cave code byte order (was (second<<8)|first) so CJK width
  measures correctly and centred labels are no longer flushed right.
- docs: DEVLOG + patch notes for the atlas and the fix.

tools/cn_strings.py

@@ -0,0 +1,65 @@
+"""Simplified Chinese UI strings for The I of the Dragon.
+
+Only *display* values are translated here (the `English` column of
+`Data\\Misc\\Strings.dat`).  Never translate `Id`s, event names, commands or
+unit types -- doing so is what breaks mission triggers.
+
+`\\a` is an in-engine text control prefix; keep it verbatim.
+Format specifiers (`%s`, `%d`, ...) must survive untouched.
+"""
+
+CN_STRINGS = {
+    # window / main menu
+    "WindowCaption": "龙之眼",
+    "MainMenu_StartNewGame": "开始新游戏",
+    "MainMenu_SaveLoadGame": "保存或载入游戏",
+    "MainMenu_LoadGame": "载入游戏",
+    "MainMenu_ResumeGame": "继续游戏",
+    "MainMenu_ResumeSavedGame": "载入上次存档：\\\"%s\\\"",
+    "MainMenu_ResumeSavedGameAutoTip": "载入上次游戏",
+    "MainMenu_CannotResumeGame": "无法继续游戏",
+    "MainMenu_Options": "选项",
+    "MainMenu_Multi": "教程",
+    "MainMenu_Credits": "制作人员",
+    "MainMenu_Exit": "退出",
+
+    # options
+    "OptionsMenu_ApplyDialog": "\\a应用更改？",
+    "OptionsMenu_Audio": "音频",
+    "OptionsMenu_Video": "视频",
+    "OptionsMenu_Controls": "操作",
+    "OptionsMenu_Game": "游戏选项",
+    "OptionsMenu_AudioTitle": "音频",
+    "OptionsMenu_VideoTitle": "视频",
+    "OptionsMenu_ControlsTitle": "操作",
+    "OptionsMenu_GameTitle": "游戏选项",
+    "OptionsMenu_Exit": "退出",
+    "OptionsMenu_Back": "返回",
+    "OptionsMenu_Okey": "应用",
+    "OptionsMenu_Reset": "重置",
+
+    # save / load
+    "SaveLoadMenu_SaveGame": "保存游戏",
+    "SaveLoadMenu_CannotSaveGame": "无法保存游戏",
+    "SaveLoadMenu_LoadGame": "载入游戏",
+    "SaveLoadMenu_CannotLoadGame": "请先选择一个存档",
+    "SaveLoadMenu_Back": "返回",
+    "SaveLoadMenu_Delete": "删除",
+    "SaveLoadMenu_CannotDelete": "无法删除",
+    "SaveLoadMenu_Cancel": "取消",
+    "SaveLoadMenu_ReplaceDialog": "\\a替换？",
+    "SaveLoadMenu_DeleteDialog": "\\a删除？",
+
+    # multiplayer / tutorial
+    "Multiplayer_Players": "玩家",
+    "Multiplayer_Host": "主机",
+    "Multiplayer_Join": "加入",
+    "Multiplayer_Ready": "准备",
+    "Multiplayer_Start": "开始",
+    "Multiplayer_RedDragon": "红龙 安诺斯",
+    "Multiplayer_BlackDragon": "黑龙 莫罗格",
+    "Multiplayer_BlueDragon": "蓝龙 巴洛斯",
+    "Multiplayer_IP": "IP：",
+    "Multiplayer_PlayerStateDescription": "%s - %d 经验值",
+    "Multiplayer_ClientSessionTerminated": "\\a游戏已被主机终止。",
+}