feedback1 gaps: bands.json bondIds is built once and read by the bot

The band -> bond derivation moves out of GameData into shared/bandBonds.js,
which tools/build-data.mjs runs per band to write bands.json bondIds
(regenerated with --offline; 9 bands are tied, the build checks the ids).
GameData.bandBondIds reads the field, so the server and the client share
one source. DATA.md documents the field; the test checks the helper on
synthetic bands and that the data matches it.

data/bands.json

@@ -1 +1 @@
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+{"band_bldsk":{"bandId":"band_bldsk","sortId":1,"name":"华法琳","iconId":"icon_bldsk","modeTypeList":["LOCAL","SINGLE","MULTI"],"totalHp":28,"effectId":"aceffect_band_21","effectName":"重点监护","desc":"【重点监护】开始作战时，使场上每个不同等阶的1个随机我方干员的所属盟约层数+2","descRaw":"【重点监护】开始作战时，使场上每个不同等阶的1个随机我方干员的所属盟约层数+2","buffs":[{"key":"prep_finish_char_bond_add_layer","bb":{"layer":2},"bbStr":{}}],"params":{"layer":2},"victorCount":3,"rewardModulus":1,"unlockDesc":null,"bondIds":[]},"band_amiya":{"bandId":"band_amiya","sortId":2,"name":"阿米娅","iconId":"icon_amiya","modeTypeList":["LOCAL","SINGLE","MULTI"],"totalHp":25,"effectId":"aceffect_band_22","effectName":"众志合一","desc":"【众志合一】场上存在3、4或5种以上激活盟约时，所有干员攻击力、生命值分别+20/30/40%","descRaw":"【众志合一】场上存在3、4或5种以上激活盟约时，所有干员攻击力、生命值分别+20/30/40%","buffs":[{"key":"env_gbuff_new_with_verify","bb":{"atk_1":0.2,"atk_2":0.3,"atk_3":0.4,"max_hp_1":0.2,"max_hp_2":0.3,"max_hp_3":0.4,"value_1":3,"value_2":4,"value_3":5},"bbStr":{"key":"act1autochess_band2_buff"}}],"params":{"atk_1":0.2,"atk_2":0.3,"atk_3":0.4,"max_hp_1":0.2,"max_hp_2":0.3,"max_hp_3":0.4,"value_1":3,"value_2":4,"value_3":5,"key":"act1autochess_band2_buff"},"victorCount":3,"rewardModulus":1,"unlockDesc":null,"bondIds":[]},"band_duyaoy":{"bandId":"band_duyaoy","sortId":3,"name":"杜遥夜","iconId":"icon_duyaoy","modeTypeList":["LOCAL","SINGLE","MULTI"],"totalHp":29,"effectId":"aceffect_band_28","effectName":"广交豪杰","desc":"【广交豪杰】每回合前2次主动刷新为特殊刷新：优先刷新出1名<炎>干员\n在<炎>部分干员缺席时体验可能不完整","descRaw":"【广交豪杰】每回合前2次主动刷新为特殊刷新：优先刷新出1名<炎>干员\n<@ba.vdown>在<炎>部分干员缺席时体验可能不完整</>","buffs":[{"key":"band_first_self_refresh_present_char","bb":{"count":1},"bbStr":{"bond":"yanShip"}}],"params":{"count":1,"bond":"yanShip"},"victorCount":3,"rewardModulus":1,"unlockDesc":null,"bondIds":["yanShip"]},"band_sarkazb":{"bandId":"band_sarkazb","sortId":4,"name":"歌利亚","iconId":"icon_sarkazb","modeTypeList":["LOCAL","SINGLE","MULTI"],"totalHp":45,"effectId":"aceffect_band_44","effectName":"坚不可摧","desc":"【坚不可摧】初始目标生命值为45点","descRaw":"【坚不可摧】初始目标生命值为45点","buffs":[],"params":{},"victorCount":3,"rewardModulus":1,"unlockDesc":null,"bondIds":[]},"band_orchid":{"bandId":"band_orchid","sortId":5,"name":"梓兰","iconId":"icon_orchid","modeTypeList":["SINGLE","MULTI"],"totalHp":30,"effectId":"aceffect_band_23","effectName":"猎头顾问","desc":"【猎头顾问】每次主动刷新均变为特殊刷新：必定刷新2名同名干员，并冻结其中一名；第10回合获得1个<寻呼模块>\n<寻呼模块>：装备时销毁，立即在调度中心中刷新三名与该干员盟约相同的干员，免费获得其中一名!（不超过当前调度中心等级）","descRaw":"【猎头顾问】每次主动刷新均变为特殊刷新：必定刷新2名同名干员，并冻结其中一名；第10回合获得1个<寻呼模块>\n<@ba.acrem><寻呼模块>：装备时销毁，立即在调度中心中刷新三名与该干员盟约相同的干员，免费获得其中一名!（不超过当前调度中心等级）</>","buffs":[{"key":"band_shop_refresh_copy_max_lv_char","bb":{"count":1},"bbStr":{}},{"key":"preparation_start_gain_chess_from_round","bb":{"round":10,"count":1},"bbStr":{"type":"equip","chess":"chess_item_4_01_e_a"}}],"params":{"count":1,"round":10,"type":"equip","chess":"chess_item_4_01_e_a"},"victorCount":3,"rewardModulus":1,"unlockDesc":"在【标准模拟】中通过第9回合后解锁","bondIds":[]},"band_justin":{"bandId":"band_justin","sortId":6,"name":"小贾斯汀","iconId":"icon_justin","modeTypeList":["SINGLE","MULTI"],"totalHp":23,"effectId":"aceffect_band_47","effectName":"私募基金","desc":"【私募基金】在第1、4、7、10回合进入休整期时获得1个<骑士储蓄罐>\n<骑士储蓄罐>：装备时随机获得1~6资金并销毁","descRaw":"【私募基金】在第1、4、7、10回合进入休整期时获得1个<骑士储蓄罐>\n<@ba.acrem><骑士储蓄罐>：装备时随机获得1~6资金并销毁</>","buffs":[{"key":"preparation_start_gain_chess_from_round","bb":{"round":1,"count":1},"bbStr":{"type":"equip","chess":"chess_item_3_12_e_a"}},{"key":"preparation_start_gain_chess_from_round","bb":{"round":4,"count":1},"bbStr":{"type":"equip","chess":"chess_item_3_12_e_a"}},{"key":"preparation_start_gain_chess_from_round","bb":{"round":7,"count":1},"bbStr":{"type":"equip","chess":"chess_item_3_12_e_a"}},{"key":"preparation_start_gain_chess_from_round","bb":{"round":10,"count":1},"bbStr":{"type":"equip","chess"Line truncated