fix(character): handle undefined characterModelTransmogs array

[kamikyforce]

Summary

• Adds defensive checks to safely handle cases where charData.characterModelTransmogs is undefined.
• Prevents viewer errors when the transmogrification module is disabled or a character has no transmogs.
• Keeps UI behavior consistent: the “Hide transmogrifications” option only appears when transmogs exist.

Changes

• Use Array.isArray(charData.characterModelTransmogs) before reading or iterating:
  • Toggle handler computes items with a safe fallback to charData.characterModelItems.
  • setSlotVisible decides whether to use transmogs only when the array exists.
• Initialize characterModel.items with a safe fallback:
  • Uses (charData.characterModelTransmogs ?? charData.characterModelItems) so models render even without transmogs.
• Show transmogs UI only when applicable:
  • Display the label/list only if characterModelTransmogs exists and there are items with a transmog.

Code References

• Toggle handler fallback: static/character.hbs:166–170
• Slot visibility guard: static/character.hbs:197–201
• Transmogs UI visibility: static/character.hbs:153–165
• Initial items with fallback: static/character.hbs:425–426

Behavior

• With transmogs available: toggle works as before; viewer uses transmogs when “Hide transmogrifications” is unchecked.
• Without transmogs (or module disabled): viewer renders the base items; no JS errors; transmogs UI stays hidden.

Testing

• Disable transmogs (e.g., ACORE_ARMORY_TRANSMOG_MODULE=0) or use a character without transmogs:
  • Page loads without console errors.
  • Toggling “Hide transmogrifications” does not throw and correctly uses base items.
• Enable transmogs and use a character with transmogs:
  • Transmogs list appears.
  • Toggling hide shows/hides transmogs as expected; slot visibility changes respect the helm/cloak/tabard checkboxes.

Notes

• Only static/character.hbs is changed in this branch. No other files or data assets are included.