- Loads 3099+ real weapons from api.entropianexus.com
- Shows: Name, Type, Damage, DPP, Cost/hour, Efficiency
- Async loading in background thread (no UI freeze)
- Search by name
- Detailed stats preview
- Ready for production use
- Remove auto-kill counting on loot (was overcounting)
- Add GearSelectorDialog to select weapons/armor/tools from Nexus API
- Add Tools → Select Gear menu (Ctrl+G)
- Selected weapon now shows in HUD during session
- Uses mock data from nexus_api.py for now