Summary

This updates the curses perm_invent display so that when wraptext is enabled, long persistent inventory entries wrap within the inventory window instead of being clipped and horizontally panned.

The existing non-wrapped behavior is preserved: perm_invent still clips long lines and supports horizontal panning when wraptext is disabled.

Details

• Count persistent inventory display height in visual rows when wraptext is enabled.
• Use the existing curses wrapping helpers, curses_num_lines() and curses_break_str(), for wrapped inventory text.
• Align wrapped continuation lines under the item text after the inventory letter prefix.
• Suppress horizontal panning controls while wrapped mode is active.
• Clamp row offsets after resize or option changes so stale scroll positions remain valid.

Testing

• Built successfully in an existing build-ready environment.
• Verified manually in curses that wrapped persistent inventory entries respect terminal width when wraptext is enabled.
• Verified that existing clipped/panned behavior remains available when wraptext is disabled.
• Ran git diff --check.