feedback7 R22-LOADOUT: the battle takes each operator's potential and 练度 from its spec entry; golden: unchanged

A PlayerBattleInput operator entry may carry `potential` (潜能 1–6) and `cultivate` (练度 0–3, the 自持有 bonus) —
the player's 干员调配 settings (the owner's decision of 2026-10-08). Specs without them field what 0.2.1 fielded, so
no golden scenario moves here; the match states both next.

- shared/loadoutRecord.js: a resolved loadout carries `potential`; loadoutRecord composes the record at it first
  (shared/potential.js atPotential), then the skill / module as before.
- server/sim/simdata.js: getChess(id, { …, potential }), getDiy(slot, pick, potential) (an owned 自选 pick's form at it;
  a prototype has none — `diyProto` on its record, shared/diy.js), getToken / getDiyToken compose the owner variant at
  the owner's potential (talents; a 自选 summon's deploy limit / holding / count); the per-battle loadout view keeps it
  per unit; DataSource.cultivateMul reads the effects.json CHAR_MAP record's char_attribute_mul.
- battle/players.js: `potential` composes the def (never a stand-in's); `cultivate` sets unit.cultMul — ×ATK / ×DEF /
  ×max HP in the unit's Πmul (units.js), a multiplier of its own, never summed with the 直接乘算 percentages (PRTS
  盟约记录 「…与自持有干员的属性加成独立」); a stand-in, a prototype 自选 pick and a summon take none [ASSUMED for summons].
- spec.js keeps both only when well-formed (never on a stand-in or a summon); content/index.js passes the potential to
  the loadout sync; the kits that read a summon variant raw (content/tokens.js ownVariant, summoner.js tokenStat,
  多萝西, 麦克尼斯特) compose it at the owner's potential; UnitInfo carries `potential` (below 6) / `cultivate`;
  unitStatsEntry counts the 练度 in the unit's own numbers (no green delta for it on the card).
- Docs: SIM.md §2 (Πmul), §9 (UnitInfo), §12.
- Tests: test/sim/potential-battle.test.js (new, 6): a unit at each potential (刺玫 413 / 17 / 70 s and 8 % at 潜能1;
  the elite on 不装备), the four 练度 tiers and their product with a +20 % ATK bonus, HP at deployment and the card's
  numbers, stand-in / prototype take neither and an owned 自选 pick both, Mon3tr / 望's 棋子 / “小自在” at the owner's
  potential, the spec round trip (kept, dropped, the JSON spec gives the same result digest), two players with the same
  chess at different settings on one field; test/sim/loadout.test.js expects the resolved loadout's new fields.

shared/protocol.js

@@ -4,6 +4,7 @@
 import { DIFFICULTIES, NAME_MAX_LEN, ROOM_CODE_LEN, MAX_SEATS, EMOTES, GEO } from './constants.js';
 import { isDroppableChess } from './standIn.js';
 import { diySlotIds, validateDiyPicks } from './diy.js';
+import { cultivatedStats } from './potential.js';
 
 // ---- tiny validators -------------------------------------------------------
 const isInt = (v, lo = -Infinity, hi = Infinity) => Number.isInteger(v) && v >= lo && v <= hi;
@@ -270,7 +271,8 @@ const statView = (x) => ({
 
 /**
  * The detail card's stats of a sim unit (server/sim/units.js Unit): its effective stats `s` (the aggregated `unit.s`,
- * or the last ones the sim computed) next to its own `unit.base` (no buffs) — max HP, ATK, DEF, RES, attack interval
+ * or the last ones the sim computed) next to its own numbers — `unit.base` with its 练度 multiplier (`unit.cultMul`,
+ * 0.2.2: part of the operator's own numbers, as on the record cards; no buffs) — max HP, ATK, DEF, RES, attack interval
  * (s), block, move speed — rounded for display (the sim keeps floats), plus the current HP. The shape of the
  * `m.unitStats` units (Match.unitStats: what the board's units start their next battle with) and of the browser
  * runner's live battle stats (public/js/battle/runner.js unitStats). An ally with a range also carries `range`: the grid
@@ -285,7 +287,8 @@ const statView = (x) => ({
  *   range?: Array<[number, number]> }}
  */
 export function unitStatsEntry(u, s = null) {
-  const base = u && u.base && typeof u.base === 'object' ? u.base : {};
+  const own = u && u.base && typeof u.base === 'object' ? u.base : {};
+  const base = u && u.cultMul ? cultivatedStats(own, u.cultMul) : own;
   const cur = s && typeof s === 'object' ? s : base;
   const range = u?.side !== 'enemy' && Array.isArray(u?.liveRangeGrid)
     ? u.liveRangeGrid.filter((p) => Array.isArray(p) && Number.isInteger(p[0]) && Number.isInteger(p[1])).map((p) => [p[0], p[1]])