fix: 避免恢复默认被尚未完成的旧调配同步覆盖

docs/design/match.md

@@ -106,6 +106,10 @@ Official rule (bwiki 盟约, 更新公告 5114): before a match the player canno
 
 **Loadout wire & state:** the client keeps a per-browser loadout `{ [baseChessId]: { skill: index, module: uniEquipId | 'none' } }` (localStorage) and sends it with C2S `room.loadout { entries }` (validated: known visible chess, legal skill index for that chess's normal AND elite status, legal module id). The lobby stores it on the seat; at match start `Match` receives `seats[].loadout`; `PlayerState` keeps it immutable for the match; board pieces are resolved to `{chessId, skillIndex, moduleId}` when building `PlayerBattleInput.units[]` (fields `skillIndex`, `moduleId`; BattleSpec carries them). Bots use defaults. m.private exposes the effective loadout so the UI (shop cards, detail panel) shows the chosen skill/module.
 
+Client sync preparation may await chess/backups data. A later edit (including restoring defaults) or `welcome`
+invalidates the earlier preparation: its payload, missing-data result or failure cannot send or change sync status.
+The current edit keeps the existing debounce/close flush, ordered requests and retry/lock handling.
+
 **潜能 / 练度 (0.2.2, the owner's decision of 2026-10-08: 「调配干员里自己设置吧，默认满潜满加成」):** official — an operator fights at the player's own potential (调度手册 「卫戍协议中干员潜能由自身已持有干员潜能决定」; an unowned 特许 operator at potential 1) and an owned operator of the same name gets the 自持有 练度 bonus (activity_table `cultivateEffectList`: 未精英化 +0 %, 精英1 ATK / DEF +5 %, 精英2 ATK +10 % DEF / HP +5 %, 精英2 Lv.60 +10 % each — a multiplier of its own, never summed with the 直接乘算 bonuses). The 干员调配 screen sets both per operator (by charId: initial, elite and 自选 forms share them; default 潜能 6 and 精英2 Lv.60); they travel as `room.loadout.ops` (`{ [charId]: { potential, cultivate } }`, defaults dropped; shared/protocol.js `checkLoadoutOps`, strict like the entries), `seats[].ops` → `PlayerState.ops` (re-checked; bots none = the defaults), and every operator the player owns states them in its `PlayerBattleInput` entry (`potential`, `cultivate`; shared/potential.js `cultivationOf`) — never a 补位 stand-in (a not-owned NORMAL chess) or a prototype 自选 pick. The sim composes the def at the potential (data/*.json carry every potential, DATA.md §2.3; the summons' talents at the owner's) and multiplies ATK / DEF / max HP by the tier's `char_attribute_mul` (effects.json `aceffect_char_1…4`, SIM.md §12). The cards (局内数值, shop and detail cards, a teammate's unit from UnitInfo `potential` / `cultivate`) show the numbers at the settings.
 
 **Sim:** `simdata` resolves a unit def for `(chessId, skillIndex, moduleId)` (cached): `skill` = the selected SkillRecord; stats = `statsBase` + module attr (elite) ; trait/talents = base with the selected module's overrides. Kit contract (backward compatible): a kit function `(bb, chess) => { skill?, skills?: { [skillId]: SkillSpec }, talents, trait }` receives `chess.skill` = the **selected** skill and `bb` = its blackboard; the loader uses `skills[selectedSkillId]` if present, else `skill` only when the selected skill is the chess's default, else the **generic** skill spec — talents/trait from the kit always apply. Every visible chess must get hand-authored specs for all of its selectable skills (tracked by a coverage test).