feat(debug): 支持网易 Minecraft 调试启动

新增 debug 子命令，自动准备开发世界、注册内置调试 MOD，并将项目行为包和资源包链接到网易运行目录，方便启动游戏后直接进入调试世界。

调试 MOD 资源随仓库一起嵌入，避免依赖本机绝对路径；Windows junction 写入剥离 verbatim 前缀后的 DOS 路径，保证 Minecraft 能正确读取链接包。

debug_mod/DEBUG_ENV_SCRIPT/Game.py

@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+from common.utils import xupdate
+import mod.client.extraClientApi as clientApi
+from .Config import TARGET_MOD_DIRS
+
+def _RELOAD_MOD():
+    state = False
+    for rootModDir in TARGET_MOD_DIRS:
+        try:
+            if xupdate.updata_all(rootModDir):
+                state = True
+        except Exception:
+            import traceback
+            traceback.print_exc()
+    return state
+
+def INIT_RELOAD_TIME():
+    return xupdate.set_load_time()
+
+def SEND_CLIENT_MSG(msg):
+    import gui
+    print(msg)
+    gui.set_left_corner_notify_msg(msg)
+
+def RELOAD_MOD():
+    import gui
+    msg = "[Dev] Scripts reloaded successfully."
+    if not _RELOAD_MOD():
+        msg = "[Dev] No script updates found."
+    SEND_CLIENT_MSG(msg)
+
+def RELOAD_ONCE_MODULE(moduleName):
+    return xupdate.update(moduleName)
+
+def RELOAD_ADDON():
+    import gui
+    import clientlevel
+    clientlevel.refresh_addons()
+    SEND_CLIENT_MSG("[Dev] Add-ons reloaded successfully.")
+
+def RELOAD_WORLD():
+    import clientlevel
+    clientlevel.restart_local_game()
+
+def RELOAD_SHADERS():
+    import gui
+    if clientApi.ReloadAllShaders():
+        SEND_CLIENT_MSG("[Dev] Shaders reloaded successfully.")
+        return
+    SEND_CLIENT_MSG("[Dev] No shader updates found.")