docs(store): remove IAP references (ad-only launch)

Drop the In-App Purchases section from the privacy policy and the
'Remove Ads' bullet from the store description, since the app now ships
ad-supported only. Renumber policy sections; bump policy date to Jun 15.
Redeployed the policy to block-seasons.web.app.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/store/store-listing.md

@@ -45,8 +45,6 @@ WHAT MAKES IT DIFFERENT
 FAIR BY DESIGN
 • No forced video before every move. Ads are spaced out, and rescue/continue is
   always your choice.
-• One-time "Remove Ads" if you'd rather go quiet — reward ads still work so you
-  never lose a helping hand.
 
 Whether you have two minutes or twenty, Block Seasons is the puzzle that's always
 in season. Download free and start your first season today.
@@ -69,7 +67,6 @@ in season. Download free and start your first season today.
 
 설계부터 공정하게
 • 매 수마다 강제 영상 광고 없음. 광고는 충분히 띄엄띄엄, 구조/계속하기는 항상 선택.
-• 조용히 즐기고 싶다면 일회성 "광고 제거". 보상형 광고는 그대로라 도움은 늘 받을 수 있어요.
 
 2분이든 20분이든, 블록 시즌즈는 언제나 제철인 퍼즐입니다. 무료로 받고 첫 시즌을
 시작하세요.