卫戍协议：盟约 web remake — initial import

Online co-op browser remake of Arknights' Stronghold Protocol: Alliance
(client-simulated combat, official waves/bonds/items/strategies, 3D board,
facing wheel, operator loadout, official emotes, deployment scripts).

server/sim/content/bonds/addon.js

@@ -0,0 +1,12 @@
+// server/sim/content/bonds/addon.js — the 15 add-on bonds (research 02 §3.9–§3.23), loaded by content/bonds.js.
+//
+//   addon/battle.js  精准 迅捷 灵巧 奥术 坚守 助力 突袭 不屈 协防干员 独行 绝技 (battle effects)
+//   addon/meta.js    助力 (prep-end layers) 远见 (layer funds, price discounts) 奇迹 (free refresh, layer funds)
+// 投资人's ×2/×3 "获得时" repeat lives in the match dispatcher, 调和's +1 core count in server/match/bondsMeta.js and its
+// "enjoys active core bonds" in support/index.js isMember().
+
+import { install as installBattle } from './addon/battle.js';
+import { registerMeta as registerAddonMeta } from './addon/meta.js';
+
+export function install(battle) { installBattle(battle); }
+export function registerMeta(registry) { registerAddonMeta(registry); }