feedback5 WK: 自选编队 on the server — room.diy { picks } (lenient: illegal picks dropped, only malformed input is BAD_MSG; stored per session / seat; a match takes the picks its seat had at the start, a change during a match is for the next one; welcome lists diyKitted), PlayerState.diy with the player's data view (a slotted DIY slot is its operator for every rule: bonds from its factions, no 特质, the pick's skill and module, the slot's tier / price / merge), a per-player stock per slotted piece (8 at tier 5, 5 at tier 6 [ASSUMED]; never in the shared pool; none when every bond of it is banned), DIY pieces in that player's shop rolls and reward offers once the 调度中心 reaches the slot's level, battleInput diy, m.private.diy / diyBanned, prep scouting and results name the operator, 信标 never sends a 自选 piece to a teammate [ASSUMED]

The owner's decisions of 2026-10-05 (picks, slots, shop per player, bans); research 0.2.0 §2. Golden unchanged (no scenario slots a DIY pick).
Tests: test/match/diy-shop.test.js (9), test/lobby-diy.test.js (4).

shared/diy.js

@@ -55,7 +55,9 @@ function diyOf(data) {
 }
 
 /**
- * The 自选 slot a chess id names: its base (normal) id, its tier and both records. Null for any other id.
+ * The 自选 slot a chess id names: its base (normal) id, its tier, the 调度中心 level whose shop lists it (`shopLevel`:
+ * activity_table shopLevelDisplayDataDict — the tier-5 slots at level 5, the tier-6 slots at level 6; the tier when the
+ * data lacks it) and both records. Null for any other id.
  * @param {string} slotId a slot's normal (`_a`) or elite (`_b`) id
  * @param {DiyData} data
  */
@@ -65,7 +67,8 @@ export function diySlot(slotId, data) {
   const baseId = own(diy.slots, slotId) ? slotId : Object.keys(diy.slots).find((id) => diy.slots[id]?.goldenId === slotId);
   const s = baseId ? diy.slots[baseId] : null;
   if (!s) return null;
-  return { baseId, goldenId: s.goldenId, tier: s.tier, elite: slotId !== baseId, normal: chessOf(data, baseId), golden: chessOf(data, s.goldenId) };
+  const shopLevel = Number.isInteger(s.shopLevel) && s.shopLevel > 0 ? s.shopLevel : s.tier;
+  return { baseId, goldenId: s.goldenId, tier: s.tier, shopLevel, elite: slotId !== baseId, normal: chessOf(data, baseId), golden: chessOf(data, s.goldenId) };
 }
 
 /** The base ids of the 自选 slots (data order: tier 5 then tier 6). @param {DiyData} data @returns {string[]} */