Fix weapon skills bug: prevent casting without weapon

[thefatcode]

Summary

Prevents weapon-based skills from being cast without a weapon equipped.

Problem

Players could exploit weapon skills (like Twisting Slash) by casting them without a weapon, potentially causing unexpected behavior or exploits.

Solution

Added a check in AreaSkillAttackAction.PerformAutomaticHitsAsync() that validates weapon presence for skills with MovesToTarget = true.

Changes

• Uses skill.MovesToTarget property instead of hardcoding skill number 41
• This covers all weapon-based melee skills (Twisting Slash, Death Stab, etc.)
• More maintainable and data-driven approach

Code Change

// Before (hardcoded)
if (skill.Number == 41 && player.Inventory?.GetItem(InventoryConstants.RightHandSlot) is null)

// After (data-driven)
if (skill.MovesToTarget && player.Inventory?.GetItem(InventoryConstants.RightHandSlot) is null)