Add Claude Code memory files and track them in git

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

.gitignore

@@ -14,8 +14,13 @@
 .config/
 .local/
 
-# Claude Code files
-.claude/
+# Claude Code files (keep memory tracked)
+.claude/*
+!.claude/projects/
+.claude/projects/*
+!.claude/projects/-home-kamaji/
+.claude/projects/-home-kamaji/*
+!.claude/projects/-home-kamaji/memory/
 .claude.json
 .claude.json.backup*