Text only: data/chess.json keeps both lines (traitOverride.desc = the class trait or the module's rewrite,
moduleDesc = the added line) and the battle unit keeps the class trait with the module on — the same trait
text, targeting and attack shape as 不装备 for every added-line module (圣约送葬人 REA-Y also rewrites it).
New helpers ui/loadoutModel.js traitLines / fullTraitText; traitText (ui/detailPanel.js) composes the two.
Golden unchanged (no sim change). Tests: test/ui/feedback5-module-trait.test.js (new), loadout-stats updated.
Bonds of 自选 pieces checked everywhere membership is decided (the owner's reminder of 2026-10-05): the match's counts through the player's data view (煌 in 炎 and 维多利亚, one member per slot, 绝技 elites), the sim's bond effects through def.bonds (叙拉古 on deployment, 协防 ×1.2 / elite ×1.4), the client's strip, popups, cards and detail card. Golden unchanged.
Tests: test/ui/diy-ui.test.js (15), test/match/diy-bonds.test.js (4), test/i18n.test.js pins screens/diy.js; test/ui/diy.e2e.test.js (SP_E2E=1, run once: pass).