0.2.5-dev: community round 30 and follow-ups

- Stock: fixed trait gifts (缪尔赛思 / 变形者集群 变形同构体, 耶拉 不融冰, 蜜蜡 / 卡涅利安 迅捷作战粮, 诗怀雅 盟约之币) still occupy stock but are granted past the cap; an operator card already shown in the shop or a reward can be taken after the pool runs out and overdraws (GitHub #498, the owner's decision); item buys and item rewards keep the stock check. 洛洛 / 焰尾 sub-pools use the measured weights (PR #497 by @2321Robin; the occupancy idea of PR #496 by @2321Robin re-implemented differently).
- Boss pairs are drawn at random once per match and fixed to battle start; the Hidden Core reuses them; a leaver does not split a full pair (the owner's decision).
- 阿戈尔 in 联防 no longer re-applies the opening devour HP loss or a false revive; Touch's team medic stays for the match after its holder leaves (owner-approved, official lifetime unverified).
- Auto-skill ranges: 司霆惊蛰 S2, 斩业星熊 S3 against air, 予愿安洁莉娜 S3; 自在's post-rebirth invulnerability is also untargetable (#510); Horn / Clementia / catapult / 忍冬 first hit (PR #502 by @Xinglan233); 不融冰 / tear gas trigger on real damage.
- Bond layer-up sound in round start / draft / prep / battle (#482): one channel, a new cue replaces the old, no extra cooldown; a prep update that adds layers and activates a bond plays one cue.
- Client: multi-swing fix (#506), refresh single-flight (PR #507 by @robll-v1), LP tower keeps the settled value with a −N tick (PR #504 by @robll-v1), export with only 潜能 / 练度 changes (PR #503 by @Xinglan233), spectator rosters list DIY members (PR #505 by @Xinglan233), banned members beside bond tooltips (PR #494 by @YuriRestia), recovery action above the away overlay (PR #511 by @RainoutOvO), the /dev/sim-check.html consistency page (PR #492 by @Cloudnyco), Korean (PR #490 by @D-Roote) and English Victoria wording (PR #499 by @YuriRestia).
- golden: 45 of 287 scenarios move against 0.2.4 (roster 17, bonds 3, fields 6, matches 17, standins 2), each attributed in docs/history/0.2.5.md §30.9 / §30.16.

public/js/ui/gameActions.js

@@ -20,6 +20,22 @@ const emitBusy = () => { for (const fn of [...busyListeners]) { try { fn(infligh
 /** Subscribe to the number of in-flight intents (for subtle busy indicators). */
 export function onBusy(fn) { busyListeners.add(fn); return () => busyListeners.delete(fn); }
 
+// Single-flight shop refresh (GitHub #501, single-ptilopsis): under a high RTT the shop has not answered yet while the
+// player taps 刷新 again — every extra g.refresh the client sends is a paid refresh (server/match intents.js → ps.refresh).
+// A tap while the previous request is still on the wire is dropped; the button dims and the R hotkey stays inert (both
+// call actions.refresh) until the request settles (success or failure). This is not server-side cancellation or
+// idempotency: a timed-out request may already have executed. The shop bar receives onRefreshBusy via the game screen.
+let refreshPending = false;
+const refreshBusyListeners = new Set();
+const emitRefreshBusy = () => { for (const fn of [...refreshBusyListeners]) { try { fn(refreshPending); } catch { /* ignore */ } } };
+
+/**
+ * Subscribe to the shop refresh's in-flight state — fires once with the current state.
+ * @param {(busy: boolean) => void} fn
+ * @returns {() => void} unsubscribe
+ */
+export function onRefreshBusy(fn) { refreshBusyListeners.add(fn); try { fn(refreshPending); } catch { /* ignore */ } return () => refreshBusyListeners.delete(fn); }
+
 /**
  * Send an intent. Resolves true on `ok`, false on error (already toasted).
  * @param {string} t
@@ -55,7 +71,13 @@ export const actions = {
   band: (bandId) => act('g.band', { bandId }),
   bandSkip: () => act('g.bandSkip'),
   buy: (slot) => act('g.buy', { slot }),
-  refresh: () => act('g.refresh'),
+  // a tap while the previous g.refresh is still on the wire is dropped (GitHub #501) — see onRefreshBusy above
+  refresh: () => {
+    if (refreshPending) return Promise.resolve(false);
+    refreshPending = true;
+    emitRefreshBusy();
+    return act('g.refresh').finally(() => { refreshPending = false; emitRefreshBusy(); });
+  },
   freeze: () => act('g.freeze'),
   levelUp: () => act('g.levelUp'),
   sell: (uid) => act('g.sell', { uid }),