feedback4: every melee chess whose trait reads 可以放置于远程位 may stand on a 高台, normal or elite, any module

The owner's decision of 2026-10-05 reverses the one of 2026-10-04 (elite 歌蕾蒂娅 with HOK-Y only) and follows PRTS:
the line is the 钩索师 / 推击手 branch trait (歌蕾蒂娅, 崖心, 见行者, normal and elite) and every module keeps it, so
the loadout no longer matters. Raised with the PRTS source in PR #69 by @sunstricken (its own change covered only
歌蕾蒂娅; its test page is not taken). GitHub #153.

- shared/highGround.js: meleeOnHighGround(rec) reads the trait without a module (traitBase, else trait); no module id.
- board.js positionClass(rec) widens those six records; placeClass(ps, rec) = positionClass(rec) for every server
  check (g.move, swaps, merge tile, evictions, audit, invariants). The client's piecePosition mirrors it.
- bot.js: the existing 高台 preference (a 高台 whose range covers the road) now applies to all six; comments.
- Docs: DESIGN §3 and §6.6, DATA (placement), PLAYING §4, META, research 03 C2, code comments. data/ unchanged
  (build-data --offline gives identical files).
- Tests: board, feedback1-placement (each holder with default / no module / every module on each 高台, a 重装
  refused, client highlights, swap, battle, bots), gameLogic.

Golden: 16 scenarios moved, every one because tools/golden.mjs lays operators out by positionClass and now places
歌蕾蒂娅 (normal, or elite with HOK-X) beside the enemy path like a ranged operator instead of on the busiest melee
tile, which shifts the others: roster-010, roster-012, roster-029, roster-040, roster-041; bond-deputShip-high,
bond-indomShip-low, bond-preciShip-low, bond-preciShip-high, bond-suntShip-low, bond-swiftShip-high; boss-boss_2-pair,
boss-boss_4-pair, boss-boss_6-pair, hidden-boss_8-pair, hidden-boss_10-pair. roster-031 (elite with HOK-Y, already
widened) and all matches are unchanged.

docs/PLAYING.md

@@ -62,7 +62,7 @@
 
 ## 4. 摆阵与朝向
 
-- 从整备区把干员拖到棋盘：近战位 / 远程位高亮为可放置格。**只有精锐歌蕾蒂娅、并且装备了模组 HOK-Y「淡金坠饰」，才能放到高台上**；崖心、见行者、没晋升的歌蕾蒂娅、换了别的模组或者不装备模组，都只能放在地面。站在高台上时照常攻击，但不阻挡敌人。**水里不能部署**：战场#08（涨潮控制）中间的那条水池（深水区）和官方一样拒绝部署，任何干员和召唤物都放不上去；突袭盟约的干员再部署、战术家的援军自动选战术点时也只会落在岸上。松手后出现**方向轮盘**，向上 / 右 / 下 / 左滑动，棋盘上会用橙色条纹预览旋转后的攻击范围，松手确认；松在中心或点「✕ 点击取消」取消。
+- 从整备区把干员拖到棋盘：近战位 / 远程位高亮为可放置格。**特性写着「可以放置于远程位」的近战干员（钩索师、推击手：歌蕾蒂娅、崖心、见行者）也能放到高台上**，普通和精锐都可以，装什么模组或者不装模组都一样；其他近战干员只能放在地面。站在高台上时照常攻击，但不阻挡敌人。**水里不能部署**：战场#08（涨潮控制）中间的那条水池（深水区）和官方一样拒绝部署，任何干员和召唤物都放不上去；突袭盟约的干员再部署、战术家的援军自动选战术点时也只会落在岸上。松手后出现**方向轮盘**，向上 / 右 / 下 / 左滑动，棋盘上会用橙色条纹预览旋转后的攻击范围，松手确认；松在中心或点「✕ 点击取消」取消。
 - 想只改朝向：把干员拖回它自己所在的格子再选方向。朝向会一直保留到下一回合。
 - **点选按地上的方格**：点哪个方格就选中站在那个方格上的单位，点空方格不选任何单位（点到后一格干员画出来的头部，算作点了后面那一格）。作战中友方同样按方格；敌人在格子之间走动，点它的身体或脚下附近（0.6 格内）即可，飞行敌人点它的身体。
 - 拖动时模型一直在指针 / 手指下（脚在指针下方约半格，鼠标和触屏一样），**指针所在的格子**就是落点并高亮；装备拖到哪个格子，就配发给那个格子上的干员；在商店栏上松手则放回原位。