refactor(cb): 컨트롤러 횡단 관심사 모듈 분리 (이동·본문 무변경)

화면 전환·NPC·포지션 관심사를 state.mjs/render.mjs/runend.mjs에서
전용 모듈로 분리. 런타임은 단일 SlayDeckController codeblock 유지.

- state.mjs → screens.mjs 개명 (화면 라우팅·버튼 바인딩)
- npc.mjs 신규: OnLobbyNpcInteract
- navigation.mjs 신규: GoLobbyMap·TeleportToActMap (월드 텔레포트)
- layout.mjs 신규: PositionMonsterSlot (UI 슬롯 배치)
- gen-slaydeck.mjs import·spread 갱신

검증: tools/verify/cbset.mjs (순서 무관 집합 비교) = 189/189 무손실,
본문/exec/params 변경 0. cbgap GAP 0, 테스트 93/93.
산출물 재생성(SlayDeckController.codeblock) 포함 — 메서드 순서만 바뀜.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tools/deck/gen-slaydeck.mjs

@@ -3,7 +3,10 @@
 import { POTIONS } from './lib/data.mjs';
 import { prop, codeblock, RUN_LENGTH } from './lib/codeblock.mjs';
 import { bootMethods } from './cb/boot.mjs';
-import { stateMethods } from './cb/state.mjs';
+import { screensMethods } from './cb/screens.mjs';
+import { npcMethods } from './cb/npc.mjs';
+import { navigationMethods } from './cb/navigation.mjs';
+import { layoutMethods } from './cb/layout.mjs';
 import { soulMethods } from './cb/soul.mjs';
 import { charSelectMethods } from './cb/charselect.mjs';
 import { runMethods } from './cb/run.mjs';
@@ -166,7 +169,9 @@ function writeCodeblocks() {
     prop('any', 'NextTurnAddCards'),
   ], [
     ...bootMethods,
-    ...stateMethods,
+    ...screensMethods,
+    ...npcMethods,
+    ...navigationMethods,
     ...soulMethods,
     ...charSelectMethods,
     ...runMethods,
@@ -177,6 +182,7 @@ function writeCodeblocks() {
     ...jobMethods,
     ...runEndMethods,
     ...renderMethods,
+    ...layoutMethods,
     ...rewardMethods,
     ...itemMethods,
     ...tooltipMethods,