chore: remove CLAUDE.md from tracking and gitignore it

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: janhenrikoverland

.gitignore

@@ -31,3 +31,4 @@ bundle.stats.json
 # DHIS2 Platform
 .d2
 src/locales
+CLAUDE.md