Item Upgrade 1.5.14 — UI hotfix

Why: The previous Independent release could show transparent forms after its UI integration change.
- Restored the direct server-form factory and native form fallback.
- Removed additive factory hooks and global form-hiding overrides.
- Included the same complete UI definitions in both resource packs so the winning pack provides all required screen definitions.
- Kept each addon's own textures and separate behavior pack; neither download requires the other addon.
- Preserved the Item Upgrade inventory/catalog scrolling-reference fixes.
- No gameplay script, loot, probability, reward, sound, animation or texture-image changes in this hotfix.
- Preserved pack UUIDs and updated dependency versions.

Validation: static file/reference checks only. Minecraft 26.51 rendering, both pack orders, standalone behavior, relog and multiplayer still require in-game testing before release.
