feedback7: merge fb7-dobermann — 教鞭 is the official three-choice (PR #353 by @Sukvii, the owner's decision), the Final Assault / Hidden Core pay a 战术特训 card's perfect coins (guarded by b.progress leaksBy), the bots put zero-range heavy guards on the road first (PR #339 by @IceCodeNew, placement only)

- Conflicts (the branch started at ae22335c): spec.js / protocol.js b.progress (resolved from fb7-ui-backlog + leaksBy),
  gameLogic.js / game.js exports (device tips + normalizePersonalChoice), docs/PLAYING.md / design/network.md lines
  merged against the base, META.md (画卷 note + 教鞭), test/docs-consistency.test.js pin (both fields).
- Grok review: MERGE AFTER FIXES — the HIGH (a forged boss result paid the cards) fixed on the branch (66a228c6), the
  META wording (1ab12763).
- Golden: matches 10 (the 杜宾 bot picks and the guard placement); union: coop3-ABYSS-5 differs from HEAD only in ai_2's
  dmgDealt (1238011 → 1186269), no outcome change — HEAD's side had moved it, the new placement applies on that path.
- Broad node --test 5623 (5621 pass, 0 fail, 2 skipped); lint 0 errors; typecheck; i18n strict clean.

test/docs-consistency.test.js

@@ -490,7 +490,8 @@ test('user playtest #6 (DESIGN §20): summons, skill triggers, blocking, push fo
   assert.match(sec(17), /\*\*revised by §20\.6\*\*/);
   assert.ok(!/the own battle's count stays on show as an upper bound tagged 联防中/.test(DESIGN), '§17.5: the frozen 联防 count is gone');
   assert.match(sec(8), /uniteLeft\? \/\* 联防: the leaker's enemies still standing/);
-  assert.match(sec(14), /`b\.progress \{ battleId, gt, killed, total, resolved\?, leaks\?, left\?, bossDmg\?, by\?, done\? \}`/);
+  assert.match(sec(14), /`b\.progress \{ battleId, gt, killed, total, resolved\?, leaks\?, left\?, bossDmg\?, by\?, leaksBy\?, done\? \}`/);
+  assert.match(doc('shared/protocol.js'), /leaksBy: \(v\) => isMap\(v, RESULT_LIMITS\.players, isId, \(x\) => isNum\(x, 0, 1e6\)\)/);
   assert.match(sec(6), /3 \*\*different\*\* free chess of tier `min\(level\+1, 6\)`/);
   assert.match(S20, /105 cards: 56 next-battle incl\. 源石虫·特训, 42 two-battle, 7 multi-round/);
   // #11 / #9 / #13: the gauge look (§18.3 / §19.5 superseded, §8.2 fill), model scale and fear (§9, §5.3, §2)