Stage 17 round 5 docs: bake the bug fixes + UI polish + L2 into live docs

- ARCHITECTURE: resign on the opponent's turn (ResignSeat + turn-check bypass); robots
  block chat but accept-and-ignore friend requests; quick-match /lobby/cancel; the admin
  robot play-to-win intent + next-move ETA panel.
- UI_DESIGN: even A->B zoom (recentre only on zoom-in), pinch, drop-target highlight,
  shuffle ≤0.3s + reduce-motion, borderless make-move disabled on illegal, variant title.
- FUNCTIONAL (+ru): variant display names (Scrabble/Erudite); robot ignores friend requests.
- PLAN: round-5 refinements bullet (+ the bilingual two-Scrabble open edge).

PLAN.md

@@ -1281,6 +1281,25 @@ provided cert) at the contour caddy; prod VPN; rollback.
     scroll and the new one-finger drag-back, so it stays dropped in favour of double-tap + hover-hold zoom;
     **robot win% in the admin game detail** (#16) — needs the seed-derived play-to-win decision exposed
     across the game/robot package boundary, to be picked up when that seam is added.
+  - **Contour-verification follow-ups** (round 5, from live testing): **resign on the opponent's turn**
+    now works — the engine gained `ResignSeat(seat)` and `game.Resign` bypasses the turn check to forfeit
+    the actor's own seat (it no longer returned "not your turn"); **quick-match cancel** was a UI no-op
+    (only stopped polling) — added the full path (REST `/lobby/cancel` → gateway → client) and clear the
+    matchmaker's pending result on cancel, so a cancelled search is dequeued (no "already queued", no later
+    robot-substituted game); **lobby win/loss** ranked by score, so a 0-0 resignation read as a win —
+    `result.ts` now places the viewer below the winner (rank ≥ 2), matching the game detail; a **friend
+    request to a robot** is accepted as pending and expires like a human ignore (robots no longer set
+    `BlockFriendRequests`); the **nudge cooldown** error got its own `nudge_too_soon` code/message and the
+    chat button disables for the hour, with the note reworded to "Waiting for your move!". UI polish:
+    **even zoom** (interpolate the scroll toward a pre-clamped target as the real width grows/shrinks — no
+    lurch-and-snap) that **recentres only on the first zoom-in**; a drag **drop-target highlight**; **pinch
+    zoom** (two-finger, preventDefault only on two touches; a second finger aborts a drag); shuffle hop
+    capped at **0.3 s** and off under reduce-motion; a **borderless** make-move icon, disabled on a known-
+    illegal pending word; **variant display names** (english & russian_scrabble → Scrabble/Скрэббл, erudit
+    → Erudite/Эрудит) shown on the create-game controls and the in-game title. **L2 done:** the admin game
+    card now shows each robot seat's per-game play-to-win **intent** + the ~40% target and, on the robot's
+    turn, its deterministic **next-move ETA**. *Open edge:* a bilingual New Game (both en+ru offered) would
+    show two "Scrabble" buttons — left as the owner's chosen naming; disambiguate if it bites.
 
 ## Deferred TODOs (cross-stage)