chore: remove web directory (migrated to external hosting)

- Delete web/index.html (moved to hosting.anvil.it.com)
- Remove "Web Page (Cloudflare Pages)" section from CLAUDE.md
- API endpoints (/api/contact) and CORS config remain unchanged

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -886,32 +886,6 @@ URL: gateway.ai.cloudflare.com/v1/{account_id}/telegram-bot/openai/...
 
 **대시보드:** https://dash.cloudflare.com → AI → AI Gateway → telegram-bot
 
-### Web Page (Cloudflare Pages)
-
-**URL:** https://hosting.anvil.it.com
-**프로젝트:** `anvil-hosting` (Cloudflare Pages)
-**소스:** `web/index.html`
-
-**배포:**
-```bash
-wrangler pages deploy web --project-name anvil-hosting
-```
-
-**구성:**
-- 로고: 3D 메탈릭 모루 + 대장간 망치 + 불꽃 (SVG)
-- 서비스 순서: 도메인 → DDoS → 해외서버 → 웹호스팅
-- 푸터 사업자 정보: namecheap-api 등록자 정보와 동일
-
-**등록자 정보 소스:**
-```
-ssh npm-linode-1
-cat /home/admin/namecheap_api/.env  # REGISTRANT_* 변수들
-```
-
-**푸터 정보:**
-- LIBEHAIM Inc. | Taro Tanaka
-- #202 K-Flat, 3-1-13 Higashioi, Shinagawa-ku, Tokyo 140-0011, Japan
-
 ---
 
 ## Deposit System