feedback5 CB1: 凯瑟琳's 定向投放 offers every shop item, not only those up to the shop level (community report 「凯瑟琳装备池没有超出商店等级的装备，原版凯瑟琳1升2都能有6本装备」, item 43)

The pool (pool_equip_kathe) is server-side; tools/build-data.mjs had capped it at the shop level [ASSUMED], so the 1 → 2
upgrade only ever offered tiers I–II (measured over 40 seeds: 55 × I, 65 × II). The players' first-hand account: tier VI
shows at that upgrade. Now every shop-eligible item, uniform [ASSUMED] (40 seeds: I 9, II 15, III 25, IV 31, V 16, VI 24);
pool_equip_narant keeps its cap (no report). data/choices.json rebuilt offline (build-data --offline): the JSON compare
shows only pools.pool_equip_kathe.maxTier removed. Test: test/match/feedback5-cathy-pool.test.js (fails on the parent
data). Docs: research 04 (the pool).

Golden: coop4-ABYSS-7 — a bot on 凯瑟琳 is offered other items at its upgrades (the match runs differently from there).

docs/research/04-items.md

@@ -411,7 +411,7 @@ Pools referenced but NOT defined in client data (server-side) - proposed content
 - `pool_equip_vict` (维多利亚 bond, every 25 layers): {灼燃, 坚固, 加速, 战栗}维式重锤, uniform.
 - `pool_equip_pepe` (佩佩): 盟约之币 45%, 萨尔贡浓茶 45%, 黄沙罗盘 10% (golden 佩佩: 40/40/20).
 - `pool_equip_rockr` (洛洛 "定制品"): {有限加速器, 激光发射器, 护盾无人机, 双模机械臂, 蜂鸣器} uniform.
-- `pool_equip_kathe` (band_cathy 定向投放, on each shop upgrade 3 choose 1) and `pool_equip_narant` (band_narant, every even round 2 choose 1): tier <= new shop level normal EQUIP.
+- `pool_equip_kathe` (band_cathy 定向投放, on each shop upgrade 3 choose 1): every shop-eligible normal EQUIP, whatever the shop level (0.2.0: players' first-hand report 「原版凯瑟琳1升2都能有6本装备」; tier <= new shop level until then), uniform [ASSUMED]. `pool_equip_narant` (band_narant, every even round 2 choose 1): tier <= shop level normal EQUIP [ASSUMED].
 - garrison_45 / 134 / 135 exist but are not referenced by any operator in `charChessDataDict` (unused this season).
 
 ## 9. Status / damage terms used by items