- Jewels ('jew' / 'jewl') can be socketed into any socketed equipment (weapon, helm, armor, shield) and apply their rolled modifiers identically regardless of slot.
- Un-socketed Jewels display 'Can be Inserted into Socketed Items' / '可镶嵌进有凹槽的装备'.
- Gems (35 codes) and Runes (r01..r33, 33 codes) dispatch slot-dependent modifiers (weaponMods vs helmMods/armor vs shieldMods) per 1.13c Gems.txt.
- Recalculate host item defense, weapon damage, reqStr, reqDex, reqLevel, indestructibility, rune letter sequences, and Runeword completion.
- Support left-click interactive socketing and visual socket overlay rendering across Inventory (10x4), Equipped paperdoll slots, Private Stash (6x8), and Horadric Cube (3x4).
- Add unit & parity test suite in tests/socket-system.test.ts.
