修复三合一奖励抽不到自选干员 #515

docs/history/0.2.4.md

@@ -274,3 +274,12 @@ enemy: picking emitted a unit click with no definition, instead of the tile clic
 engine-canvas regression retains the card/100 HP assertions and also covers another field refresh, live HP loss and
 closing the card when the crate is destroyed. Device metadata supplied by the new entry still wins; changing fields
 does not carry old devices across. Gameplay and allied targeting rules are unchanged.
+
+### 29.15 Promotion rewards include the player's stocked 自选 at the reward tier (#515)
+
+The player confirmed from gameplay that a 自编干员 can appear in the three-in-a-row promotion reward. Include every
+unbanned 自选 entry with remaining personal stock in the reward roll, filtered by the reward's tier rather than the
+ordinary shop's slot-level gate. The ordinary shop keeps its existing unlock gate. Displaying a candidate still reserves
+no copies; `g.reward` rechecks stock and acquiring the pick takes exactly one from that player's `DiyStock`. Coverage in
+`test/match/diy-shop.test.js` forces the shared tier-5/6 pools empty to check the level-4→tier-5 and level-5→tier-6
+boundaries, then checks stock is unchanged on display and decremented once on selection.