0.2.6-dev: port PR #552 by IceCodeNew — an optional 「弹药数量」 setting (default off: the official HUD has no such number, the maintainer's decision of 2026-10-13) shows an ammo skill's rounds left / magazine under its bar, from the exact b.snap ammo counts; sanitised with the other settings, applied by the field view live, all four language packs, the diagnostics line; the simplified board has no ammo bar; DESIGN §31.9; golden: unchanged

docs/PLAYING.md

@@ -87,7 +87,7 @@
 - **推开 / 拉拽**按官方「力度 − 重量」决定距离：例如野鬃二技能（中等力度）把重量 0 / 1 / 2 / 3 的敌人推开约 2.1 / 1.7 / 0.4 / 0.1 格，重量 4 以上推不动——轻型敌人反而推得更远。野鬃二技能沿她的朝向推开：正前方 45° 以内按上面的距离，身后、侧面或贴身的敌人只被轻推一下（约 0.4 格以内）；琳琅诗怀雅三技能的金币则从她身边向外推开，落在她前方 2–4 格的范围（官方「范围2-4」）内的地面敌人和她阻挡的敌人身上。被推开、拉动的敌人会进入官方的**失衡**状态，这段时间里不走路、也不发动普通攻击：推开按力度减重量的档位持续 0.2–约 1.17 秒（中等力度推重量 1 的敌人为 0.8 秒），拉拽持续 1 秒（力度比重量低 2 档时 0.5 秒，拉到身前后也一样），失衡期间也不会放技能（例如弑君者的闪现）或执行脚本移动（例如枯朽之种俯冲），弧光锋卫则在失衡期间每 0.066 秒受到 400 点真实伤害；推不动的空中单位（静态刚体）被推时停顿 0.1 秒、被拉时停顿整个拉力作用时间；浮空、重生和路线上的瞬移出现都会立刻解除失衡。画面上的滑行也用同样的时间（默认 2 倍速下现实时间减半）。攻击速度最低为 20（沼泽、寒霜等减速叠满时也不会更慢）。
 - **生命回复不是治疗**（与官方一致）：吟游者的特性（魔王、浊心斯卡蒂及其海嗣）、调香师的天赋、瑕光二技能、铃兰三技能、锡人和引星棘刺（一、二技能）的炼金单元给友军的「每秒恢复生命」是提高对方的**生命回复速度**，不是治疗：收割者 / 不屈者 / 武者（如隐德来希、圣约送葬人、折桠）这类「无法被友方治疗」的干员和处于禁疗的干员也能吃到，治疗量加成（如「受到的治疗效果提升」）也不会放大它；铃兰三技能开启后的第一秒没有回复。直接治疗（医疗干员的治疗、技能的「恢复…生命」）仍然对这些干员无效。
 - **元素损伤条**在单位自己的血条正下方：左边是元素图标，白条是剩余的元素值，只有真正爆发时才会耗尽；爆发后条变成元素的颜色、图标闪烁，在冷却期间慢慢回满（这段时间不会再积累元素损伤）。
-- **弹药、狼影和「我执」**也画在血条上（0.2.2）：弹药类技能（如隐现的二技能，14 发）开启时，血条下方的技力条换成**分格的黄色弹药条**——一格一发，打一发少一格，补弹时回来；这类技能开启期间脚下不再有持续的金色光环。伺夜的狼群在血条下方有一排**菱形**，亮的是剩下的狼影，暗的是已用掉的空位（最多 3 个），进入战术点形态时消失。斩业星熊进入「我执」后，绿色血条停在 1 点，超出的伤害涨成血条上的**红条**，红条满了才会倒下。这些只是显示，不改变任何战斗数值。
+- **弹药、狼影和「我执」**也画在血条上（0.2.2）：弹药类技能（如隐现的二技能，14 发）开启时，血条下方的技力条换成**分格的黄色弹药条**——一格一发，打一发少一格，补弹时回来；这类技能开启期间脚下不再有持续的金色光环。官方界面不显示剩余发数；想看数字可以打开「设置」里的「弹药数量」（默认关闭，0.2.6，PR #552），弹药条下方就会显示剩余弹药 / 总弹药数（如 13/14，包括额外弹药和补弹），弹匣太多、格子密到画不出分隔线时也能读出来。伺夜的狼群在血条下方有一排**菱形**，亮的是剩下的狼影，暗的是已用掉的空位（最多 3 个），进入战术点形态时消失。斩业星熊进入「我执」后，绿色血条停在 1 点，超出的伤害涨成血条上的**红条**，红条满了才会倒下。这些只是显示，不改变任何战斗数值。
 - **敌人**：远程敌人的射程按官方从干员的碰撞体积（半径 0.25 格）算起，比数据上的攻击范围半径远 0.25 格——例如萨卡兹枯朽战车（射程 2.2）能打到中心 2.45 格以内、站在低地的干员。没被阻挡的远程敌人每次攻击都会站定、播完攻击动作，两次攻击之间才继续前进。它的第一下攻击就是「秽蚀轰击」（在目标处留下半径 1.7、持续 10 秒的污染区：低地每秒 50、高台 25 点真实伤害，同名不叠加），被阻挡时普通攻击伤害翻倍。“萨科塔之翼”等血量第一次低于一半时会在原地小范围乱飞 5 秒（官方叫「恐惧」）；叙拉古、妮芙等干员造成的恐惧会让敌人朝远离干员的方向逃跑。隐匿的敌人只有被阻挡（或被揭示）时才能被选为攻击目标，溅射、技能的圆形范围伤害也打不到没被挡住的隐匿敌人（和官方一样）；阻挡解除后 3 秒内它仍然可以被选中（官方页面注明 0 秒或 1 秒的敌人按页面），之后才重新隐匿：深池逐火战士每次被击倒后先重生 1 秒，然后变成继续往前走的隐匿「余烬」（需要 5 次伤害击倒，护卫的「火灰」10 次），一般要用干员挡住它才能选中（挡住时它不再半透明；被阻挡时被击倒的，重生结束后约 2 秒内也能用远程或范围伤害补刀），10 秒内没打掉就满血站起来；敌人重生时身上的减速、恐惧等状态会被清空、技能冷却从头开始，被恐惧的逐火战士变成余烬后也能被挡住；转译基底·α 原始形态受到的伤害全部无效，受到第 4 次物理伤害、第 4 次法术伤害或被阻挡时花 2 秒变成寻仇者、特战术师或幽灵，之后才能被击倒。
 - **复活**（策略「埃芒加德」的前 3 次、M3茧甲）与官方一致：算作一次被击倒，紧接着在倒下的位置免费立即再部署——干员「被击倒时」和「部署时」的效果都会触发（例如砾的不屈 / 卡西米尔层数、瑕光的层数、卡西米尔盟约的部署攻击力），技力和身上的增益像普通再部署一样重置。
 - **策略「鸭爵」（“神秘顾客”）**：从第 5 回合起，你和队友的每场作战（**最终攻势和隐秘核心也算**，联防不另外替换）有 0–2 名地面敌人（不含领袖及其部件、悬赏敌人）被替换为特殊版本的鸭爵、高普尼克、流泪小子或圆仔，出现在被替换敌人的时间和路线上（两人同场的领袖战里，各自只替换走向自己保护目标点的敌人）；击倒者获得 1 资金（联防中的队友也算），漏进保护目标点照常扣 1 点目标生命值。鸭爵和圆仔**不攻击、无法被阻挡**：鸭爵受到伤害后移动速度 +300%；圆仔始终面向我方干员较多的一侧，来自正面的物理 / 法术伤害 −80%。流泪小子隐匿（被阻挡时才能被选中），攻击使目标晕眩 3.5 秒，被晕眩的干员挡不住它（官方规则）；它被放开后要过 1 秒才重新隐匿（官方是 0 秒，本模式有意放宽，维护者 2026-10-07 的决定）；高普尼克免疫晕眩、冻结和浮空。
@@ -179,6 +179,8 @@
 
 **伤害数字**：标题画面、大厅、房间和对局里的「设置」有「显示伤害数字」（默认打开，每一次命中和治疗都跳出数字）和「官方伤害数字」（默认关闭）。打开「官方伤害数字」后，只在伤害达到 [PRTS 作战机制](https://prts.wiki/w/作战机制)「伤害红字（暴击）」的条件时显示红色整数（最终伤害不低于期望伤害的 1.5 倍；闪避了本应显示红字的一击时显示黄色 MISS）。关掉「显示伤害数字」则什么数字都不显示。无敌时官方客户端会显示红色 0，本作目前不会为这种未击中补一条伤害事件，因此这种红色 0 暂时看不到。
 
+**弹药数量**：「设置」里的「弹药数量」默认关闭（官方界面没有这个数字）；打开后，弹药类技能开启时弹药条下方显示剩余弹药 / 总弹药数，技能结束、休整期和干员倒下时不显示。简化棋盘没有弹药条，也不显示这个数字。
+
 **修改快捷键**：标题画面的「设置」按钮、大厅和房间顶栏的「设置」（玩法说明左边）或对局左下角的「设置」→「快捷键」。点一下要改的按键（只用键盘时按 Tab 移到它上面再按 Enter），出现「按下新按键…」后按新的键；按 `Esc` 取消，设置窗口不会关闭。可以用字母、数字、空格、标点符号键和 Delete / Insert / Home / End / PageUp / PageDown；`Esc`、`Tab`、`Enter`、方向键和 F1–F12 留给界面使用，也不能搭配 Ctrl / Alt / ⌘。新按键已被另一个快捷键使用时两者互换，列表下方会写明（例如把「撤退选中干员」改成 `X`，「出售选中干员」就换成原来的 `Q`）。「恢复默认」改回上表的按键。修改立即生效，商店栏、准备按钮和单位底部「撤退 / 出售」按钮上显示的按键也跟着变；设置和音量等一起保存在当前浏览器里（换浏览器或清除网站数据后回到默认）。按键按键帽上印的字符识别（AZERTY 等键盘按印着的字母），俄文等非拉丁布局按键位识别。手机等纯触屏设备要连接键盘才能用快捷键，设置里的快捷键列表默认折叠。
 
 ## 12. 反馈问题

docs/design/client.md

@@ -44,7 +44,7 @@ view.resize() ; view.destroy()
 
 Asset URLs (0.2.6, host bandwidth layer 1): the client takes every art, model and audio URL from `data/assets.json` and `data/local-assets.json` and builds none itself, so the content-hash segment the server puts in front (`/assets/~<hash>/…`, docs/ASSETS.md "The committed manifest and the served manifests") needs nothing on this side: `validSpine` still sees `.skel`, pixi-spine finds the atlas and its pages under the same segment (a model shares one hash), audio is fetched as `/media/~<hash>/…`. The two URLs the client derives from another file's — the 3D board's `tiles.json` beside the atlas and the token death sound beside `charDie` — are served `no-cache` (the board) or drop the segment (`shared/assetPaths.js unhashedUrl`, the sound).
 
-Visuals: oblique perspective board (tilted ~30°, trapezoid tiles), raised highland blocks with side faces, road/floor/forbidden styles per research 07 §7, pulsing red gates, blue objective, dashed hand pads. Units: Spine (Front/Back rule, feet anchored — flying units hover `FLY_HOVER` 1.3 tiles up, the client's 0.35 in character space, research 12, §25.13.5 — an enemy flyer from the road whatever tile it crosses (GitHub #277) —, shadow sprite on the ground), elite gold outline glow, tier chip, HP bar (green ally / red enemy), SP bar (skill ready glow; while an ammo skill runs it is the magazine instead — a yellow cell per round, emptying from the right, `b.snap ammo`, and the skill draws no standing aura, UnitInfo `ammoSkill`), 斩业星熊's 我执 pool as a red bar over her drained HP bar (`b.snap neg`), 伺夜's 狼群 count as a row of diamonds under the bars, the lit ones the 狼影 left (`b.snap wolves`; 0.2.2, GitHub PR #303 / #378 / #383), status icons, the element gauge row under the bars — icon + white bar of the remaining 元素值, element-coloured refill during a 爆发冷却 (§18.3, §20.8); enemies drawn × their official prefab factor (enemies.json `modelScale`, §20.4); an enemy's mode — the `form` of a sim fx (`shared/protocol.js fxForm`), or UnitInfo `form` for a view built later through `render/app/info.js renderInfo` — switches clip sets (`render/units.js FORMS`: 掠海漂移体 crawl, 暴鸰 bombed, 转译基底's forms, the 逐火 embers, the leaders' 重生, 守墓石像, the 孤岛风云 prisoners' warning and 解放; closing clips timed from the fx `dur`), a one-off cast (`PROJ[kind].once`) plays once, and a local-only model's web alias is tinted (`ALIAS_TINT`: 灼热 / 炽焰源石虫, §21.14); damage numbers (phys orange-white, arts purple, true white, heal green); projectiles drawn per kind, hit sparks and melee slashes, skill activation bursts and auras (§17.3); death fade for enemies, summons and devices — a knocked-out operator stays on its tile in its held Die pose under a redeploy ring (§18.3); leak flash at the objective. Fallback when Spine missing/failed: avatar in a rarity-coloured diamond with bob/lunge tweens — a failed or timed-out model is loaded again (bounded), and a view re-resolves its model and avatar when the asset manifest arrives late or the tab is shown again (§21.27). 60 fps target with ≤ 120 units (a crowd draws its Spine units through the cached atlas, `render/impostor.js`, each refreshed every k-th frame: the refresh turns follow this frame's update order — `ctx.impostorSlot()`, a counter reset at the start of every frame — so a frame refreshes ⌊n/k⌋ or ⌈n/k⌉ of n units instead of whatever random per-unit phases gave, and a unit not refreshed for 2k frames is refreshed regardless; GitHub PR #334 by @Cloudnyco, issue #327 step 1 — its step 2, a time budget by priority, is not done; a model whose pose cannot change — `SpineActor.poseHeld()`: a knocked-out operator in the held end of its Die clip, a frozen model — is neither re-posed nor redrawn, only its clock runs, until a new clip, a revive, a wind-up, a form's closing clip, a clipping switch or a zoom past the impostor's rescale threshold; the redeploy rings draw one shared rasterised label per number, `render/textures.js downLabel`, the same pixels as a Text of their own). Picking (which unit a press / hover / dropped item is on) and the drag target follow one rule, `render/pick.js` — the tile under the pointer (§18.1); the Spine store never hands out a skeleton whose unload is in flight (§17.1).
+Visuals: oblique perspective board (tilted ~30°, trapezoid tiles), raised highland blocks with side faces, road/floor/forbidden styles per research 07 §7, pulsing red gates, blue objective, dashed hand pads. Units: Spine (Front/Back rule, feet anchored — flying units hover `FLY_HOVER` 1.3 tiles up, the client's 0.35 in character space, research 12, §25.13.5 — an enemy flyer from the road whatever tile it crosses (GitHub #277) —, shadow sprite on the ground), elite gold outline glow, tier chip, HP bar (green ally / red enemy), SP bar (skill ready glow; while an ammo skill runs it is the magazine instead — a yellow cell per round, emptying from the right, `b.snap ammo`, and the skill draws no standing aura, UnitInfo `ammoSkill`; with 设置「弹药数量」 on, its count `left/magazine` under it, §31.9), 斩业星熊's 我执 pool as a red bar over her drained HP bar (`b.snap neg`), 伺夜's 狼群 count as a row of diamonds under the bars, the lit ones the 狼影 left (`b.snap wolves`; 0.2.2, GitHub PR #303 / #378 / #383), status icons, the element gauge row under the bars — icon + white bar of the remaining 元素值, element-coloured refill during a 爆发冷却 (§18.3, §20.8); enemies drawn × their official prefab factor (enemies.json `modelScale`, §20.4); an enemy's mode — the `form` of a sim fx (`shared/protocol.js fxForm`), or UnitInfo `form` for a view built later through `render/app/info.js renderInfo` — switches clip sets (`render/units.js FORMS`: 掠海漂移体 crawl, 暴鸰 bombed, 转译基底's forms, the 逐火 embers, the leaders' 重生, 守墓石像, the 孤岛风云 prisoners' warning and 解放; closing clips timed from the fx `dur`), a one-off cast (`PROJ[kind].once`) plays once, and a local-only model's web alias is tinted (`ALIAS_TINT`: 灼热 / 炽焰源石虫, §21.14); damage numbers (phys orange-white, arts purple, true white, heal green); projectiles drawn per kind, hit sparks and melee slashes, skill activation bursts and auras (§17.3); death fade for enemies, summons and devices — a knocked-out operator stays on its tile in its held Die pose under a redeploy ring (§18.3); leak flash at the objective. Fallback when Spine missing/failed: avatar in a rarity-coloured diamond with bob/lunge tweens — a failed or timed-out model is loaded again (bounded), and a view re-resolves its model and avatar when the asset manifest arrives late or the tab is shown again (§21.27). 60 fps target with ≤ 120 units (a crowd draws its Spine units through the cached atlas, `render/impostor.js`, each refreshed every k-th frame: the refresh turns follow this frame's update order — `ctx.impostorSlot()`, a counter reset at the start of every frame — so a frame refreshes ⌊n/k⌋ or ⌈n/k⌉ of n units instead of whatever random per-unit phases gave, and a unit not refreshed for 2k frames is refreshed regardless; GitHub PR #334 by @Cloudnyco, issue #327 step 1 — its step 2, a time budget by priority, is not done; a model whose pose cannot change — `SpineActor.poseHeld()`: a knocked-out operator in the held end of its Die clip, a frozen model — is neither re-posed nor redrawn, only its clock runs, until a new clip, a revive, a wind-up, a form's closing clip, a clipping switch or a zoom past the impostor's rescale threshold; the redeploy rings draw one shared rasterised label per number, `render/textures.js downLabel`, the same pixels as a Text of their own). Picking (which unit a press / hover / dropped item is on) and the drag target follow one rule, `render/pick.js` — the tile under the pointer (§18.1); the Spine store never hands out a skeleton whose unload is in flight (§17.1).
 
 ---
 
@@ -52,7 +52,7 @@ Visuals: oblique perspective board (tilted ~30°, trapezoid tiles), raised highl
 
 Look & feel: research 06 §11–§12 (near-black green-grey panels, mint `#4ed8af` accents, gold prices, bracket frames, hexagon badges, bond discs, 7-segment countdown). Fonts: Noto Sans SC (Google Fonts with local fallback), Bender/Novecento self-hosted for numerals and Latin micro-labels.
 
-Screens: **Title** (season art backdrop, 开始 → nickname), **Lobby** (独立模拟 / 同盟模拟 → create or join; recent rooms; a 设置 button left of 玩法说明 opens the title screen's settings dialog, GitHub #238), **Room** (4 seats, invite code + copy link, difficulty picker (host), the co-op 「AI 队友最后选择」 switch (host, off by default; read-only for the others), add/remove AI, ready, start; the same 设置 button), **Briefing** (INFO_CHECK: stage, factions, disabled bonds, banned chess, boss silhouette, ready x/4), **Band draft** (grid of 40 bands with icon/name/LP/effect; turn order list; skip; 查看禁用盟约与干员 under the order list opens the briefing's bond rows, legend and banned operators again in a read-only dialog — one component, `ui/matchInfo.js`, §21.28), **Game** (Pixi field + DOM HUD: top bar with round/phase capsule (the kill counter reads 已解决 / the round's own enemies: a leak counts, a split child or summon is in neither number, §14)/LP (live during the own battle, §17.5)/timer/ready, and beside the latency a 观战席 capsule (eye + count, a roster with the host's ✕) while the room has spectators (GitHub #120); bond strip + popups; left team panel with LP/status/emote bubbles, click to watch (a boss round frames the viewer's pair in green, §15); bottom shop bar (level card, 3–5 chess cards — a slot the upgrade just opened is a bare frame until the next refresh, GitHub #332 —, item card, funds, refresh, freeze, collapse; 准备就绪 folds it and cancelling unfolds it, GitHub #138); detail panel on click/hover (header with bonds, then 特质 — the operator's own effect — right under it, 特性, stats (live: the battle's own numbers / the start-of-battle ones in prep, §18.5), skill, module, equipped items, talents: §17.5); enemy preview drawer (next round enemies with counts, factions; its 本局信息 tab lists the briefing's disabled bonds and banned operators, §21.28); 机变 overlay (the official card: framed icon + name, the effect text — data `descRaw` — under it, the taker's round avatar at the top-right; two taps, §18.2, §20.7); merge reward overlay (the promotion reward, or a special offer — 凯瑟琳's 定向投放 … — as item / chess cards under its source's label, with the count of offers queued behind it, §21.2); phase banners; the round's result box at SETTLE (the official 「作战结束」 + 「全员无伤！」 / 「生命值减少 −N」 for the viewer's own LP — after a 联防 the server's charge, `m.public.uniteResult.losses` — with the matching BATTLEOVER sound; none in the boss rounds or for a viewer not in the round; GitHub #235, PR #112); ticker (by broadcast priority, highest first; a leader-damage line plays only in its round and a player's newer one replaces the older, §21.10); toasts; emote wheel; settings (volume, quality, show damage numbers)), **Result** (victory/defeat, rounds, per-player lineup, stats, titles, back to room).
+Screens: **Title** (season art backdrop, 开始 → nickname), **Lobby** (独立模拟 / 同盟模拟 → create or join; recent rooms; a 设置 button left of 玩法说明 opens the title screen's settings dialog, GitHub #238), **Room** (4 seats, invite code + copy link, difficulty picker (host), the co-op 「AI 队友最后选择」 switch (host, off by default; read-only for the others), add/remove AI, ready, start; the same 设置 button), **Briefing** (INFO_CHECK: stage, factions, disabled bonds, banned chess, boss silhouette, ready x/4), **Band draft** (grid of 40 bands with icon/name/LP/effect; turn order list; skip; 查看禁用盟约与干员 under the order list opens the briefing's bond rows, legend and banned operators again in a read-only dialog — one component, `ui/matchInfo.js`, §21.28), **Game** (Pixi field + DOM HUD: top bar with round/phase capsule (the kill counter reads 已解决 / the round's own enemies: a leak counts, a split child or summon is in neither number, §14)/LP (live during the own battle, §17.5)/timer/ready, and beside the latency a 观战席 capsule (eye + count, a roster with the host's ✕) while the room has spectators (GitHub #120); bond strip + popups; left team panel with LP/status/emote bubbles, click to watch (a boss round frames the viewer's pair in green, §15); bottom shop bar (level card, 3–5 chess cards — a slot the upgrade just opened is a bare frame until the next refresh, GitHub #332 —, item card, funds, refresh, freeze, collapse; 准备就绪 folds it and cancelling unfolds it, GitHub #138); detail panel on click/hover (header with bonds, then 特质 — the operator's own effect — right under it, 特性, stats (live: the battle's own numbers / the start-of-battle ones in prep, §18.5), skill, module, equipped items, talents: §17.5); enemy preview drawer (next round enemies with counts, factions; its 本局信息 tab lists the briefing's disabled bonds and banned operators, §21.28); 机变 overlay (the official card: framed icon + name, the effect text — data `descRaw` — under it, the taker's round avatar at the top-right; two taps, §18.2, §20.7); merge reward overlay (the promotion reward, or a special offer — 凯瑟琳's 定向投放 … — as item / chess cards under its source's label, with the count of offers queued behind it, §21.2); phase banners; the round's result box at SETTLE (the official 「作战结束」 + 「全员无伤！」 / 「生命值减少 −N」 for the viewer's own LP — after a 联防 the server's charge, `m.public.uniteResult.losses` — with the matching BATTLEOVER sound; none in the boss rounds or for a viewer not in the round; GitHub #235, PR #112); ticker (by broadcast priority, highest first; a leader-damage line plays only in its round and a player's newer one replaces the older, §21.10); toasts; emote wheel; settings (volume, quality, show damage numbers, the optional ammo count)), **Result** (victory/defeat, rounds, per-player lineup, stats, titles, back to room).
 
 盟约栏支持「收起／展开盟约」（GitHub #142）：收起时隐藏完整列表并关闭由列表打开的浮层，让原图标区域的指针事件到达棋盘，只保留至少 44×44 CSS px 的恢复按钮。折叠状态在本局阶段变化、观看队友时保留；展开后仍按当前观看对象显示最新盟约。按钮支持 Enter / Space，聚焦按钮时 Space 不触发准备或暂停。
 
@@ -215,3 +215,11 @@ lands in a hidden tab. Battle deploys keep the silent `onDeploy`; audio.handleBa
 - [ASSUMED] (the PR author's account): an operator that arrives on the bench (a purchase, a reward, a grant) and a merge's
   elite land; so does a piece that a new state puts on a board tile it was not on (from the bench, another tile, a swap),
   when that state arrives. Turning in place, a retreat and bench moves do not.
+
+### Optional ammo count (§31.9)
+
+设置 →「弹药数量」 (`ammoCount`, PR #552 by @IceCodeNew) defaults off — the official HUD has no such number (the
+maintainer's decision of 2026-10-13). On, an operator's ammo bar carries `left/magazine` under it (`UnitView._updateAmmoCount`,
+the exact b.snap `ammo` counts, extra rounds and refills included), centred in the bar's yellow; the rows under the bars
+move down by its height. It hides with the magazine, in the prep view and after death. The simplified board has no ammo
+bar and so no count.

docs/history/0.2.6.md

@@ -176,3 +176,31 @@ the files, the limiter keys, volume and mute), `test/render/playtest6-promote.te
 check `test/ui/deploy-replay.e2e.test.js` (`SP_E2E=1`, mock harness: SETTLE → 回合开始 replays the board in deployment order
 about 50 ms apart with one sound each, once per round and again the next round; in the 休整期 a purchase lands, a move
 within its Start sounds nothing more, a later move lands, a turn in place does not). Golden: unchanged (client only).
+
+### 31.9 Optional ammo count (PR #552)
+
+PR #552 by @IceCodeNew.
+
+**Seen.** While an ammo skill runs, the SP bar is the yellow magazine (one cell per round, 0.2.2) with no number. A
+magazine whose cells are under 2 px draws no cuts between them (`AMMO_BAR.minCell`), so a large one (240 rounds) cannot be
+counted. The PR draws `remaining/capacity` under the bar.
+
+**Decision.** The official client shows no such number. The maintainer's decision of 2026-10-13: an optional setting, off
+by default, like 「官方伤害数字」 (§30.20).
+
+**Now.** 设置 →「弹药数量」 (`ammoCount`) is sanitised with the other settings: a missing or non-boolean saved value is off.
+Its hint says the official interface has no such number. The field view takes the value at creation and live
+(`setSettings`). `UnitView._updateAmmoCount` draws `left/magazine` from the exact b.snap `ammo` counts (拉特兰's extra
+rounds and refills included), centred under the ammo bar in its yellow at 10–16 px by the zoom, and moves the rows under
+the bars (狼影 pips, the purse, the element gauge) down by its height. It hides with the magazine (the skill's end, an
+older snapshot without the row), in the prep view, after death and for enemies; while the option is off nothing is built.
+The simplified 2D board has no ammo bar (its SP bar reads the tuple's SP), so it shows no count. The diagnostics' settings
+line names `ammo count` when it is on. Display only: the sim, the protocol and the data are unchanged. The PR's last commit
+inlined the readout into `_updateHud`; here it is a method like the purse's (`_updateCoins`), behind the setting.
+
+**[ASSUMED]** Nothing new: the font, size and place are the PR's.
+
+**Tests.** `test/render/hud-readouts.test.js` (off: nothing drawn and the rows below unmoved; on: the exact count through
+spending, refills, capacity changes and dense magazines, hidden at the skill's end, in the prep view, after death and for
+enemies, the live toggle), `test/ui/ammo-count.test.js` (normalisation, the toggle and its hint in every language pack, the
+view's live setting, the diagnostics line), `test/ui/gameLogic.test.js` (sanitizeSettings). Golden: unchanged.