fix: 准备阶段显示外勤医疗预备干员 (#315)

docs/META.md

@@ -784,6 +784,10 @@ PREP ready/acting · COMBAT/boss combat/done · UNITE helping/done · others don
 `m.private` = DESIGN §8.3 exactly (sent per player whenever it changed). `nextEnemies` = the current round's wave
 (+ the player's bounty enemies, tag `bounty`; boss rounds: the player's boss field, tag `boss` — the leader's entry with its
 spawn tile `start`, where the boss-field prep shows it —, + its bounties).
+During PREP, `prepMapChars` carries the read-only 预备干员-医疗 UnitInfo for every living player's field when any living
+player holds 外勤医疗. It uses the stage's normal-board map-character slot; the own board draws it separately from
+`board` (so it cannot be moved or sold), and `prepFieldMeta` includes it for scouts. In a boss prep, the same slot is
+mapped to each player's half, including `bossMate.units`. Touch replaces this reserve medic only at battle start.
 
 Bond layers in the views (DESIGN §20.15): from the end of COMBAT (`_finishCombat`, every normal result in) until SETTLE,
 `m.private bonds` and `m.public players[].bonds` add the finished battle's IN_BATTLE gains (`PlayerState.pendingLayerGains`

docs/design/client.md

@@ -77,6 +77,6 @@ Target: a **real 3D board layer** rendered with three.js (vendored ESM, no CDN)
 - One camera model drives both layers: `public/js/render/projection.js` keeps its public API (`worldToScreen`, `screenToWorld`/tile picking, presets, transitions) but derives it from a three.js `PerspectiveCamera` initialised from the official configBlackBoard framing, so Spine units, FX, drag/drop and hit-testing stay aligned with the 3D board.
 - Must degrade gracefully: when local-client art or WebGL2 features are missing, fall back to the current 2D atlas board; keep 60 fps (static geometry merged into few draw calls; textures mipmapped; DPR-aware).
 - Implemented (`public/js/render/board3d/*`, `render/app.js`): three.js is downloaded only when the local-art manifest lists the board atlas; the built 3D area, the drawn 2D rows and the lit rect follow `viewKind(kind, {rect})` (the field the camera actually shows: a 'prep' camera on rows ≤ 6 = `bossPrep`); the background plane is extended with mirrored copies and the clear colour matches the fog (no visible edge at any aspect); battle crates live in their own group (survive scene rebuilds) and follow the board mode (`switchableBox`: 3D mesh ⇄ 2D box on a mode switch or a lost WebGL context); quality 'low' drops shadows; `?board=2d|3d` overrides. The direction wheel's range stripes sit between the board canvas and the unit canvas.
-- Done: Final Assault / Hidden Core prep takes place on your own half of the boss field (research 09 §1.2): pieces shown at boss-field positions (row − 7; right-hand player mirrored col → 20 − col, RIGHT ↔ LEFT), drop targets and wheel directions mapped back to board coordinates (`prepCamera` → `bossPrep` in public/js/ui/gameLogic.js; covered by the playtest2 browser tests). A scout of such a board (`m.field` prep of a boss round) comes in boss-field coordinates with the player's `side` and is framed the same way, the leader standing at its spawn (0.2.0, community report item 55). Both players of a pair are shown together, as in the battle (0.2.0, community report item 51): the partner's board stands on the other half (`m.private.bossMate` units, already in boss-field coordinates: mirrored on the right half, RIGHT ↔ LEFT; read-only `m:<uid>` views of `render/app.js syncMates`), the whole boss field is lit, a scout carries both halves (`mate`), and the team panel frames the pair's avatars in the official green (`ui/battle bg_team_border` tinted, a plain ring without the local art; `gameLogic teamFrameIds`) from the round's start through the fight.
+- Done: Final Assault / Hidden Core prep takes place on your own half of the boss field (research 09 §1.2): pieces shown at boss-field positions (row − 7; right-hand player mirrored col → 20 − col, RIGHT ↔ LEFT), drop targets and wheel directions mapped back to board coordinates (`prepCamera` → `bossPrep` in public/js/ui/gameLogic.js; covered by the playtest2 browser tests). A scout of such a board (`m.field` prep of a boss round) comes in boss-field coordinates with the player's `side` and is framed the same way, the leader standing at its spawn (0.2.0, community report item 55). Both players of a pair are shown together, as in the battle (0.2.0, community report item 51): the partner's board stands on the other half (`m.private.bossMate` units, already in boss-field coordinates: mirrored on the right half, RIGHT ↔ LEFT; read-only `m:<uid>` views of `render/app.js syncReadOnlyPrepUnits`), the whole boss field is lit, a scout carries both halves (`mate`), and the team panel frames the pair's avatars in the official green (`ui/battle bg_team_border` tinted, a plain ring without the local art; `gameLogic teamFrameIds`) from the round's start through the fight. With 外勤医疗 selected, every living player's own prep, paired boss prep and scouted prep shows a read-only 预备干员-医疗 on its stage slot; the strategy's Touch replacement occurs only when combat begins.
 
 ---

docs/design/network.md

@@ -18,7 +18,7 @@ Platform additions (implemented): `welcome.{resumed, version}`, `welcome.diyKitt
 C→S (all carry `rid`): `g.infoReady` · `g.band {bandId}` · `g.bandSkip` · `g.bandFocus {bandId?}` (the strategy highlighted in the draft screen — what a timed-out turn takes; absent / null clears it; `WRONG_PHASE` outside BAND_DRAFT, `ALREADY` after the pick, `BAD_TARGET` for a band not allowed; §18.2) · `g.buy {slot}` · `g.refresh` · `g.freeze` · `g.levelUp` · `g.sell {uid}` · `g.move {uid, to:{area:'board', row, col}|{area:'hand', idx}, dir?}` · `g.equip {itemUid, targetUid, replaceUid?}` (`replaceUid`: which equipped item a third one replaces, §6.2) · `g.art {itemUid, row, col, dir?}` (`dir` ∈ UP|RIGHT|DOWN|LEFT from the deploy wheel, §3; absent ⇒ `to.dir`, then RIGHT; `g.move` onto the piece's own tile re-orients it; board pieces in `m.private` / `m.field {prep:true}` carry `dir`) · `g.destroy {uid}` (hand / temp items only; equipped items are locked, §6.2) · `g.reward {idx}` · `g.choice {idx, choiceId?}` (with an ID: the recipient's PREP personal choice; without one: the public SP_DRAFT; stale or wrong IDs never fall through to the public draft) · `g.ready {ready}` · `g.emote {id}` · `g.watch {fieldId, playerId?}` (`playerId`: the player tapped — a shared 联防 / boss pair field shows two; what an eliminated viewer follows, §25) · `g.autoplay {on}` · `g.pause {on}` (solo battles only, §14 Solo pause) · `g.unitStats {seq?}` (ROUND_START / SP_DRAFT / PREP, else `WRONG_PHASE`; eliminated: `ELIMINATED`) → push `m.unitStats` (§18.5) · `g.leave`
 S→C:
 - `m.public` — full public state on every change (throttled ≤ 10/s): `{ phase, round, lastRound, deadline, serverNow, modeId, difficulty, stageId, factions, disabledBonds, bannedChess, bossId, hiddenBossId?, teamLp?, bossHp?:{hp,max}, overtimeAt? /* FA / HC: ms epoch the overtime drain starts, §4 */, paused /* solo pause, §14 */, draft?:{order,turn,picks,skipsLeft,turnDeadline,turnSeconds /* one turn's length, 0 untimed; deadline = turnDeadline (§18.2) */,untimed}, sp?:{family,cards /* bounty cards carry descRaw?, §20.6 */,turn,picks}, players:[{playerId, seat, name, isBot, connected, alive, lp, bandId, shopLevel, boardCount, ready, bonds:[{bondId,count,active,tier,layers,harmony? /* 调和's +1 is in count, §21.26 */}], fieldId, status, pendingLp? /* COMBAT / 联防 of a normal round: the LP the player's own battle will cost at settlement so far, min(lpCapPerRound, counted leaks) — in 联防 min(lpCapPerRound, uniteLeft) — omitted when 0 and in every other phase (§17.5 live LP) */, uniteLeft? /* 联防: the leaker's enemies still standing — not spawned yet + alive + counted leaks, uncapped, live (§20.6) */}] , fields:[{fieldId, kind, players:[playerId...], progress?:{killed, resolved, total, done} /* §14 顶栏胶囊: resolved = the field's own scheduled enemies knocked down or leaked, null while unknown */}] }` · `m.public.uniteResult` — SETTLE after a 联防 only, its outcome as data: `{ through /* the leakers' enemies that still got through, uncapped */, helpers:[playerId...], leakers:[playerId...], losses:{playerId: the LP settlement charged this round — every alive player} }`; absent when no 联防 resolved (the client's result box then reads the round's own battle; GitHub #235, PR #112)
-- `m.private` — the recipient's full PlayerState view (§6.2 minus server-only data) on every change; in a boss round's prep also `bossMate { playerId, side, units }` — the pair partner's board on its half of the boss field (UnitInfo, mirrored on the right half), re-sent when the partner moves (0.2.0, community report item 51).
+- `m.private` — the recipient's full PlayerState view (§6.2 minus server-only data) on every change; during prep, `prepMapChars` shows the 外勤医疗 reserve medic on the stage's pre-existing slot without adding a movable board piece; in a boss round's prep also `bossMate { playerId, side, units }` — the pair partner's board and reserve medic on its half of the boss field (UnitInfo, mirrored on the right half), re-sent when the partner moves (0.2.0, community report item 51).
 - `m.field` — field meta when watching starts: `{ fieldId, kind, rect, stageId, units: [UnitInfo], effects? }` (the units on the field, knocked-out operators waiting to redeploy included — `Battle.fieldMeta`, §18.3). The prep-scouting field (`Match.prepFieldMeta`) puts the scouted player's **hand (整备区) and 临时整备区 into `units` as well**: held pieces as units on the hand row (row 7, col = hand slot) and temp pieces on the temp row (row 8, cols 4..8 = the temp slots; PRTS 帮助 counts the temp area with the hand; a held item is a `kind: 'item'` unit the client draws as its floating plate) — the scout renders exactly like the own prep bench, for every watcher alike, the spectator seat's copy equal to a teammate's (§23.19's "never a private view" stays the no-`m.private` rule); the scout signature `_prepScoutSig` carries the hand / temp slots, so a piece moved to another slot is a change — and carries `effects`: the scouted player's effects view (策略 / 机变 / 悬赏 …), the watched player's effects column ready-made
 - NOTE: game time in `b.snap`/`b.ev` is carried as **`gt`** (the frame's `t` is the message type).
 - Active finite zero-SP timed skills display `sp=timeLeft`, `spMax=duration` and `UF.SKILL`; after end they display

docs/history/0.2.2.md

@@ -1578,8 +1578,8 @@ Notes for the integrator
 
 ### 27.64 外勤医疗's pre-battle map character retains its earlier aggro when Touch replaces it — `content/bands/battle.js installMapChars`
 
-- **Seen**: the user observes 预备干员-医疗 already visible on the field during preparation. With two elite operators,
-  `battleStart` creates Touch only after all board units have deployed. This gives the sim unit the latest `aggroSeq`;
+- **Seen**: the [official recording](https://b23.tv/JZLqdSO) at about 4:25 shows 预备干员-医疗 on the field during preparation,
+  while this client's preparation view did not show it. With two elite operators, `battleStart` creates Touch only after all board units have deployed. This gives the sim unit the latest `aggroSeq`;
   a local boss test makes “萨米的意志” select Touch's column first. In the
   [official recording](https://b23.tv/JZLqdSO) at about 4:57, Touch stands at the right edge while 冰凌 falls on a
   different column. The recording supports a mismatch, but does not by itself isolate every other target's taunt.
@@ -1587,10 +1587,8 @@ Notes for the integrator
   describes a 预备干员-医疗 appearing on every player's field and being replaced by Touch at combat start if at least two
   elite operators stand there. PRTS 索敌 places the last deployed target ahead at equal taunt. [ASSUMED]: the
   replacement retains the map character's pre-deployment aggro position; the sources do not fix its exact numeric rank.
-- **Now**: only the 外勤医疗 map character (预备干员-医疗 or Touch) gets an early `aggroSeq` after its `battleStart`
-  spawn. Its actual deployment event and `deploySeq` stay unchanged. Operators, ordinary initial summons and
-  mid-battle summons retain their existing priority.
+- **Now**: in PREP, every living player's own board and scouted board shows a read-only 预备干员-医疗 from the stage's map-character slot when any living player holds 外勤医疗; a boss pair's two medics appear on the respective halves. The prep unit does not become a movable `board` piece. At `battleStart`, only the 外勤医疗 map character (预备干员-医疗 or its Touch replacement) gets an early `aggroSeq`. Its actual deployment event and `deploySeq` stay unchanged. Operators, ordinary initial summons and mid-battle summons retain their existing priority.
 - **Golden**: one value moves in `test/golden/matches.json`: `coop2-NORMAL-14-standins`, player `h_0`'s
   `dmgDealt` 3,000,543 → 2,999,081. That match fields 外勤医疗, so its changed initial target order can alter damage;
   every other recorded result is unchanged. **Tests**: `test/content/bands.test.js` checks both variants' priority and
-  “萨米的意志” 冰凌 selection on solo and two-player boss fields.
+  “萨米的意志” 冰凌 selection on solo and two-player boss fields; `test/match/touch-prep.test.js` checks own, scouted and paired boss preparation views; the render browser test checks that the medic is visible, mirrored and not draggable.