Archive AI files, rewrite CLAUDE.md and README.md as human-only

Artfight staff confirmed AI-assisted HTML is not permitted under their
rules. Archived original AI-assisted CLAUDE.md, README.md, and all
ai-chats session logs to archive/. New CLAUDE.md explicitly blocks AI
from editing HTML files. New README.md documents the ruling and links
to archive/ for transparency.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

archive/ai-chats/INDEX.md

@@ -0,0 +1,14 @@
+# AI-Chats Master Index
+
+**Project:** Artfight HTML
+**Protocol Version:** 3.2
+
+---
+
+## 2026-06-13
+
+### [01] [Folder: 2026-06-13-01-gitea-push-setup](./2026-06-13-01-gitea-push-setup/)
+- **Topic:** Initial git setup and push to Gitea — fixed SSH agent (ssh-add) issue
+- **Models Used:** Sonnet-4.6
+- **Files:** 2 files
+- **Status:** ✅ Complete