Reward icons now show what you actually got

Every reward display in the game — crate openings, quest completions, tower run summaries, nomad camp trades — was showing the wrong icon for items. If you opened a salvage crate and pulled a ring, it showed a sword. If a bounty paid out enhancement materials, every material type showed the same generic shape regardless of tier. Fixed.

All item and reward icons now pull from a single source of truth. A weapon shows a sword or a two-handed cross depending on handedness. Armor shows a shield. Rings, necklaces, helmets, boots — each has the right icon. Enhancement material tiers have distinct shapes so you can tell crude from primal at a glance. Every context that displays rewards — crates, quests, tower runs, trade screens — now uses the same mapping.