feat: add MeshPort overlay networking, item actions window, and AVA2 client enhancements

- add MeshPort peer-to-peer overlay networking SDK, C++ integration, and Python bindings
- add item actions quick use/split/delete/lock overlay window (mt_item_actions)
- add shop name range and NPC name visibility settings to system display options
- support battlepass ticket activation and month validation in mt_battlepass
- support boss tracking teleport destination button in mt_bosses
- support asynchronous account registration cancellation and pending login cancellation
- update AVA2 item conversion for attr lock scrolls and battlepass tickets
- update .gitignore for local build outputs and caches

src/port/UserInterface/PythonSystem.h

@@ -113,6 +113,10 @@ class CPythonSystem : public CSingleton<CPythonSystem>
 		// PORT: AVA2 effect_level (0 all, 1 hide players/NPCs, 2 hide monsters/NPCs, 3 hide others, 4 hide all).
 		int								GetEffectLevel() { return m_iPortEffectLevel; }
 		void							SetEffectLevel(int iLevel) { m_iPortEffectLevel = iLevel < 0 || iLevel > 4 ? 0 : iLevel; }
+		int GetShopNamesRange() { return m_iPortShopRange; }
+		void SetShopNamesRange(int index) { m_iPortShopRange = index < 0 || index > 4 ? 0 : index; }
+		bool GetShopNameStatus() { return m_bPortNPCNames; }
+		void SetShopNameStatus(bool shown) { m_bPortNPCNames = shown; }
 		bool							IsUseDefaultIME();
 		bool							IsNoSoundCard();
 		bool							IsAutoTiling();
@@ -163,4 +167,6 @@ class CPythonSystem : public CSingleton<CPythonSystem>
 		PyObject *						m_poInterfaceHandler;
 		TWindowStatus					m_WindowStatus[WINDOW_MAX_NUM];
 		int								m_iPortEffectLevel = 0;
-};
+		int m_iPortShopRange = 0;
+		bool m_bPortNPCNames = true;
+};