feat: add GlobalPalStorage.sav conversion support

[LFM097384]

Summary

This PR adds full read/write support for GlobalPalStorage.sav, the dedicated global Pal storage container introduced in Palworld v0.3.x+.

Closes no existing issue, but extends the conversion and save-management capabilities of the toolset.

---

Changes

New file

src/palworld_toolsets/convert_global_pal_storage.py

• Two-way conversion: GlobalPalStorage.sav → JSON and JSON → GlobalPalStorage.sav
• Integrated with the existing Conversion Options dialog (no separate entry point needed)

GUI

src/palworld_aio/ui/tools_tab.py
Added two new options to ConversionOptionsDialog (indices 8 and 9):

• Convert GlobalPalStorage.sav to JSON
• Convert GlobalPalStorage.json to SAV

Core logic

src/palworld_aio/utils.py

• load_global_pal_storage(save_dir) – locates and deserializes GlobalPalStorage.sav next to Level.sav
• get_global_pal_storage_entries(gvas_file) – extracts the SaveParameterArray for downstream processing

src/palworld_aio/constants.py
Added global_pal_storage_gvas and global_pal_storage_path to global state.

src/palworld_aio/save_manager.py

• Auto-loads GlobalPalStorage.sav on every save-folder open and reload
• Writes it back on every save operation alongside Level.sav
• Includes GlobalPalStorage Pals in the existing Pal audit / diagnostic report flow

src/palworld_aio/main.py / **unc_manager.py**

• GlobalPalStorage is loaded at startup alongside Level.sav
• Priority ordering for location labels now includes Global Pal Storage

Internationalisation

All 8 supported locales (de_DE, en_US, es_ES, r_FR, ja_JP, ko_KR,
u_RU, zh_CN) updated with three new keys:

• ool.convert.global_pal_storage.to_json
• ool.convert.global_pal_storage.to_sav
• ool.convert.global_pal_storage_done

---

Technical notes

• Save type PLM / Oodle compression (save_type = 49) is handled transparently by the existing GVAS pipeline — no new decompression logic required.
• Container header: /Script/Pal.PalGlobalPalStorageSaveGame, 960-slot fixed array.
• Fully backward-compatible: if GlobalPalStorage.sav is absent the tool simply skips it without error.
• No changes to the Level.sav parsing flow.