feedback3: merge WJ — 高台 only for elite 歌蕾蒂娅 with HOK-Y, live prep watch, silenced 折射, grant toasts, emote timeout glyph

docs/META.md

@@ -11,7 +11,8 @@ server/match/
   gamedata.js      typed, defaulted view of data/*.json (config tunables with research defaults) + the balance layer
                    (data/tuning.json, §3.1)
   pool.js          SharedPool (copies per base chess, across players), per-match bans, copy-weighted rolls
-  board.js         placement legality from the stage legend on the deploy field (own board / boss half), slot helpers,
+  board.js         placement legality from the stage legend on the deploy field (own board / boss half); a 高台
+                   also takes elite 歌蕾蒂娅 with HOK-Y (shared/highGround.js), slot helpers,
                    reading order (boardOrder), a merge's elite tile in deployment order (mergeTile)
   bondsMeta.js     bond counting modes, tiers, 调和 / 独行 / 助力 / 绝技, layers
   effectsMeta.js   MetaRegistry + EffectDispatcher + the handler ctx (this document, §2)
@@ -212,7 +213,7 @@ no battle effect), it gets the settlement's `m.result`, and `handle()` answers o
 The rest of this section is the legacy server-run mode
 (`SP_COMBAT=server`):
 `g.watch { fieldId }`: any live field during COMBAT / 联防; while no battle field is up (PREP, drafts, SETTLE)
-`'n:<pid>'` returns a one-shot board view — during a battle phase an `'n:<pid>'` id must name a live field
+`'n:<pid>'` keeps the viewer scouting that board and pushes `prepFieldMeta` again when it changes (GitHub #87) — during a battle phase an `'n:<pid>'` id must name a live field
 (`BAD_TARGET 'no such field'` otherwise, and the viewer keeps its stream). In the
 最终攻势 / 隐秘核心 a player fighting in a boss field may only watch its own field ("两名参与者会处于同一个战场，但无法查看
 另一组队友的战场情况" → `BAD_TARGET 'other group hidden'`); eliminated / departed players spectate any field.
@@ -709,8 +710,8 @@ same counts (its input's `bonds` come from `bondsView()`, PlayerState.battleInpu
 `ps.layers` (rules, `activatedLayers`) are untouched; SETTLE clears the pending gains as it adds them to `ps.layers`
 (once); the next round start clears them too.
 
-`m.field` = `{ fieldId, kind, rect, stageId, units, live }`; during prep `g.watch 'n:<pid>'` returns a one-shot board
-view with `prep: true` (scouting a teammate).
+`m.field` = `{ fieldId, kind, rect, stageId, units, live }`; during prep `g.watch 'n:<pid>'` returns that board
+with `prep: true` and sends it again when the board changes (GitHub #87).
 
 **`b.snap` / `b.ev` game time**: every frame is `{ t: '<type>', … }`, so the snapshot's game time (DESIGN `b.snap.t`)
 is sent as **`gt`** (game seconds); `b.ev` carries the same `gt`. The client reads `gt` (`render/interp.js frameTime`,