Custom Naming, Custom Labels, and Editing Improvements

This update focuses on country custom naming, custom labels, and map-editing workflow improvements.

Country custom naming (State Panel -> State Actions):

• Added a new Custom Naming system for countries.

• You can now edit the state name and a full-name template separately.

• Templates support placeholders such as {Name} and {RestorationOrdinal}.

• Multi-language translations are supported for custom country names.

Custom labels (Map Editing):

• Custom labels are now integrated into the Map Editing panel.

• Create and manage custom labels directly on the map.

• Labels now support font selection, font size, bold, italic, text color, outline color, and outline width.

• Added multilingual text support plus position editing and curve editing for decorative map labels.

Date and history tools (Map Editing -> Global Commands):

• Added Set Date, allowing you to directly set BC/AD year, month, and day.

• Added Clear History to quickly wipe world history, state/family history, and province ownership history.

Editing workflow and fixes:

• Ctrl + mouse wheel now adjusts the current brush radius while editing.

• Alt + mouse wheel now adjusts brush height in height-edit mode.

• Improved province border refresh speed and fixed several stale async border, out-of-range, and index error issues.

• Merchant ships now use object pooling, reducing repeated instantiate/destroy overhead.

• Reduced long-distance vector stroke draw calls and fixed AI vassal settings not fully taking effect when disabled.

The next major update is planned for late April or early June. Stay tuned!